[checkyoursudo]

Consider that you don't have to create the universe from the beginning to make something from scratch (Sagan). If the art is work-for-hire and you own all the rights, then I think the game is truly yours. Just like most of us don't write compilers or hand-make all the computer components ourselves. I didn't even build my own chair or desk! :)

Well, I sort of did build my own chair and desk, since they come from Ikea.