@nando161
Rather than repeating your undescriptive post in alt text why not actuary describe it like you might, if say you were trying to explain it to a friend who couldn't see it for whatever reason 🤷🙂.
There's an #AltBot if you need it (but defo check it for mistakes / missing bits) or you could use the #ALT4me hashtag to see if anyone else would be willing to help out & write one. They'll probably use the #ALT4you tag to indicate their efforts.
Hope this info helps.