It's only right to call out what they've done wrong and give credit where credit is due. Here I have the CSP file opened:
View attachment 48370
As you can see, the work time is registered as 11 hours, meaning 11 hours had been spent actively on this application. Which, if OP delibrately tried to fake it by AFK-ing on this screen for half a day, I would really do like to applaud their dedication. Not to mention the dozens of fully toggleable layers organized below. If you've worked with these kind of software before and know how AI images are generated, you'd realize that this is, in fact, drawn organically.
Which is why I said this one is legitimate. For the other one whose file is supposedly lost, however, I am not so sure. They could have used AI on that one, in which case... I don't really have anything to say. It's one thing to lie and not own up to it, but if they truly try to scam people with AI, I'd not hesitate to call them out. Whatever the case, I'm not doing the detective work here. I have other things to do, lol.