For context, the grading scheme gives them a pass mark for using:
Adjective, verb, place phrase, adverb and verb or adverb opener.
A merit mark for using those plus:
Simile, onomatopoeia, sensory writing.
A distinction for using all above and:
Metaphor, juxtaposition.

@solderandchaos kermit the Frog, a green muppet, is sipping liptons tea, no milk, from a glass cup.

@solderandchaos a white man looking very surprised, slightly raises his eyebrows and then blinks in an expression of mild shock or disbelief.

@solderandchaos The “distracted boyfriend” meme. A woman labelled “new side project” is walking toward camera wearing a red dress. Behind her, a man labelled “me” is looking around at her in a cringeworthy manner. Next to him, a woman who is clearly his girlfriend is looking at him in disgust. She is labelled “all my other unfinished side projects”. She has been duplicated a bunch of times to fill up the entire background, showing just how many neglected side projects there are.

@solderandchaos A cat wearing a smart blue suit sits in front of a table laid for tea. He looks like he is contemplating buying a boat.

@solderandchaos various equations and graphs are superimposed on a picture of a woman with a puzzled expression

@solderandchaos a cartoon dog sits on a chair in a room that is full of flames. The dog is sipping a cup of tea and saying 'This is fine'.

@solderandchaos a small girl looks at the camera with an expression of mischievous delight. In the background a house is on fire.

@solderandchaos An owl with wide open eyes and beak, looks surprised by what you just said.

@solderandchaos Two panel meme, the top is a Geordi LaForge from star trek making a stop hand gesture and shaking his head, the bottom is him pointing at something with an intrigued expression on his face

@solderandchaos A man claps slowly.

@solderandchaos A whimsical, cartoonish canine humanoid casually sits at a dining table, surrounded by raging flames burning all around their house. The canine remarks "This is fine".

@solderandchaos An old man sits at a laptop. He is holding a cup and his smiling face hides a pain from the world.

@solderandchaos A child is on a beach, their fist is clenched and their face is resolute.

@solderandchaos
A young girl in a red and purple shirt with a very angry expression on her face is waving a hairbrush more or less in the direction of the viewer.

@solderandchaos A two image meme featuring a puppet monkey facing to the right. In the first image he is giving a side-eye look towards the reader, probably noticing the comment on something the people are doing wrong. In the second image he is looking straight ahead, resolutely ignoring the comment, which he is most likely guilty of committing too.

@solderandchaos I think that **any** alt-text from @nocontexttrek fits your criteria. There are other "no context" accounts that post images with well-crafted alt-texts.

@solderandchaos a young girl stands in front of a burning building, looking into the camera. Her mischievous smile makes you wonder if she was responsible for the fire.

@solderandchaos A stock photograph of a balding senior white man smiling at the camera, with a grey beard and dressed in a grey shirt. He is sitting in what seems to be a grey office cubicle, in front of a grey desk with a grey laptop on it. His left hand is holding a white (not grey!) coffee mug, while his right hand is uselessly hovering over the laptop's keyboard, as if he was posing for a stock photograph. His smile seems forced, and is uncanny and uncomfortable.

@solderandchaos A cute cartoon dog sits, smiling. He is surrounded by fire and he’s fine with that.

@solderandchaos a man with a smug expression is tapping the side of his head, indicating that the idea he’s just had is very smart

@solderandchaos an angry woman is screaming and pointing, apparently at the next frame. In the next frame a white cat is sitting on a chair in front of a plate of food and looks surprised at the outburst.

@solderandchaos a man is sweating while looking at two buttons on a control panel. The buttons are labelled with options that represent an apparently impossible choice.

@solderandchaos boromir from lord of the rings is gesturing and pinching his face in disbelief. "one does not simply walk into mordor!"

@solderandchaos A middle aged man in a high school hallway wearing a backwards baseball cap and a tshirt with the text of "Music Band". He is carrying a skateboard with one hand, wheels resting on his shoulder and has an inquisitive expression on his face.

@solderandchaos Three people in head to toe blue and red skin-tight costumes point at each other in confusion. The costumes feature a cobweb pattern.

@solderandchaos a balding white man in a futuristic red and black uniform, his shoulders slumped, puts his hand (or hands) over his face.

@solderandchaos OK one more. A red-haired woman stands before a curly-haired man, whose back is to us. Both are dressed warmly, as it is clearly very cold, with snow on the ground around them. The woman scathingly informs the man that he is completely ignorant.

@solderandchaos A man opens his mouth and moves his hand as though about to start debating a comment. His face then cycles through a series of disconcerted expressions. He averts his eyes and covers his mouth with his fist as though to stop words from escaping. He then drops his chin onto his hand with a wary, defeated, expression. He cups his fingers over his mouth and stares ahead blankly. He has clearly thought better of sharing his opinions.

@solderandchaos @SRLevine A warrior with a neat brown beard and wearing a cloak with black and white fur clasps the hilt of a sword with both hands and looks slightly downward while contemplating something in the distance.

@Tanya Here are three examples that I've actually posted into the Fediverse (on another channel than the one I'm replying from now, so don't go looking for them). Mind you, they adhere to the alt-text rules for the Fediverse rather than those for websites and blogs, and yes, there is a difference.

Example no. 1: Meme directly based on one template with overlaid captions.
Screen capture from the live-action film The Lord of the Rings: The Fellowship of the Ring, edited into an image macro. It shows a close-up of the actor Sean Bean as the character Boromir. He is speaking with a concerned expression on his face. His right hand has taken the shape of a ring with all fingers with the thumb and and index finger touching. The image has two large pieces of text. The one at the top is, “One does not simply,” and the one at the bottom continues with, “implement FEP-EF61.” An explanation of the meme template used in this picture and background information can be found in the post. If you are on Mastodon, Misskey or one of its forks, the post is hidden behind a summary and content warning. If you are on Pleroma, Akkoma, Friendica, Hubzilla or (streams), the explanations follow right below this image.

Example no. 2: Meme directly based on one template with extra space for captions.
Image macro, based on a digital photograph of a fluffy and very chubby calico cat sitting on the floor on its hindquarters and looking upward at the bowl of Fruit Loops in the bottom left corner of the image. At the top of the image, there is a very light grey space with a two-part caption. It starts with: “Daniel Supernault:<em> announces a TikTok clone for the Fediverse.” This is followed by a blank line and, “Fediverse users:”. Between the grey space and the image, there is a narrower white space with another caption that has been part of the image for longer than the grey space. The caption speaks for the cat, “bröther may i have some lööps”, with the “o”s being umlauts.

Example no. 3: Self-made collage using multiple templates (contains a Japanese profanity, though, but I didn't want to alter it).
Collage of captioned meme images of various kinds in two rows. In the top left, there are two smugly grinning Wojaks, facing half each other, half the audience. The one on the left has the diaspora* logo above his head and his hand on his chin in a pensive gesture. The one to his right is wearing a black tuxedo with a bowtie, and he has the Mastodon logo above his head. These two have a common caption below them: “We're beyond such peasantry as that filthy and grubby PHP. We demand only the best: Ruby on Rails.“ Slightly right of centre, still in the top row, there is a bearded Soyjak with glasses, crying with his mouth wide open, pink eyes and streams of tears running down his cheeks. He is facing towards the left. Above his head is the Pleroma logo. His caption is, in all-caps and ending in five exclamation marks, “Noooooooo, Elixir is the way to go and PostgreSQL!” In the top right, there is another bearded and bespectacled Wojak, facing towards the left again. This one is angry with the Misskey logo above his head. With the same open mouth as the one to his left, he shouts, “Utter heresy, there is no match for TypeScript and Vue.js, baka!” The bottom row is taken up by three creepy-looking brownish moths with glowing eyes. The left one is facing towards the right with the Friendica logo above it. The other two are facing towards the left with the logos of Hubzilla and the streams repository above them. Their common caption is, in huge all caps and with an umlaut, “Lämp”.

The original posts also have explanations in the post text for those who don't understand the image and the description which I expect to be the norm. They went into the post text because explanations must never go into the alt-text, and because they wouldn't fit into a maximum of 1,500 characters anyway. I would post these explanations as well, but you've only asked for alt-texts, and besides, these explanations tend to be even longer than the alt-texts.

#Long #LongPost #CWLong #CWLongPost #FediMeta #FediverseMeta #CWFediMeta #CWFediverseMeta #AltText #AltTextMeta #CWAltTextMeta #ImageDescription #ImageDescriptions #ImageDescriptionMeta #CWImageDescriptionMeta #FediMeme #FediMemes #FediverseMeme #FediverseMemes #Profanity #Swearing #CWProfanity #CWSwearing