Old topic, i know, but this may help one to another dev seeking for specific jobs to be done.
Never simply trust the word of someone you don't know behind the screen, there's 3rd parties out there dedicated to help artists and coders with freelancing jobs of every kind, from art, music, coding, etc. I recently walked upon Fiverr (I don't wanna to sound like i'm advertising it uhh ) and its pretty safe to use, considering that the artists will do their job as long as you pay though the platform, which basically works by building levels of trust among the freelancers and the communities. No freelancer will try to scam you there as they are individuals trying to get good reviews and rates on their commisioned works in order to increase their sales, and anything sus will make the fiverr system to jump and check over everything, to the point that if you get some proof like the one you got in this post, regardless the self claimed "artist" not doing his job as promised, you can simply get your money back then. As for other things like .patches that some devs may share or sell in platforms like itch.io , you should be good as well, since they can be pretty strict in such platform if something you purchase doesn't match with the product description.