Posts: 3,717
Thanks: 84801 in 156 Posts
33 Achievements
View My Journal
They're cartoony so they'd be fine. Cartoony = in game style, for the most part. The "real pictures" thing is mainly about REAL pictures - like a photo of your dog. But even then there are filters that you can apply to a real photo to make them fit the game style.
The real thing you'd need to worry about here is whether or not you have permission to use this artist's work. Is there a policy or TOU somewhere? Some artists don't want their artwork used in any way while some are fine with it. If you can't find anything, send the artist a message asking if you can use their artwork.