It appears that Donald Trump's NFT image of himself as a cowboy comes from an Amazon image that was slightly altered. https://www.amazon.com/Scully-Rangewear-Canvas-Natural-XX-Large/dp/B00847UT34
Amazon.com

The Trump astronaut NFT image appears to have been a recolored image that was stolen from @benedictredgrov https://www.wired.co.uk/article/nasa-archive-photos-apollo-space-shuttle
Take an exclusive look inside Nasa's colossal, unseen archives

Benedict Redgrove has spent nine years photographing Nasa's vast, untouched archives. Here he reveals the spacesuits, engines, and rubber stamps that took men to the Moon

WIRED UK
The Trump fighter jet pilot NFT seems to be a Shutterstock image. Did they license it? https://www.shutterstock.com/image-photo/usable-fighter-pilots-body-his-helmet-218482390
Usable Fighter Pilots Body His Helmet Stock Photo 218482390 | Shutterstock

Find Usable Fighter Pilots Body His Helmet stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Thousands of new, high-quality pictures added every day.

Shutterstock

Here is the image from which the Trump tuxedo NFT seems to have been created.

It's fitting that a fake billionaire would put himself in a tuxedo from Men's Wearhouse. The white bowtie is pitifully constructed. https://www.menswearhouse.com/p/pronto-uomo-notch-lapel-modern-fit-tuxedo-black-360M361M10

Access Denied

Trump's NFT of him pretending to be a hunter (something he would not be caught dead doing in real life) seems to be derived from this wader set https://dnwoutdoors.com/banded-aspire-wader/?sku=BANDED%20B1100025%7CCROC%7C12
ASPIRE Collection CATALYST All-Season Breathable Wader by Banded

shop for Banded Aspire Waders at www.dnwoutdoors.com

DNW Outdoors
There are slight differences with some of the above images and their sources, meaning that it is very possible that the NFT collection is derived from unlicensed images as well as AI-generated copyright infringements. Getty banned AI images for this reason https://www.artnews.com/art-news/news/getty-images-bans-ai-generated-images-due-to-copyright-1234640201/
Getty Images Bans AI-Generated Images Due To Copyright Worries

“There are real concerns with respect to the copyright of outputs from these models,” said Getty CEO Craig Peters.

ARTnews.com
Here's my even more detailed writeup about how these crudely made memes managed to sell out, plus some more details on the shady company behind the operation: https://tyt.com/reports/7015be31e708f973a/f29081cbfa181843a
Trump NFT Images Are Based on Freely Available Photos, But His Fans Bought Them Anyway

Ex-president's "digital trading card" is his strangest grift yet

TYT Network
@mattsheffield Getting a 404 on the link.
@Nunes I just checked it and the link worked for me. Try again?