Really fun concept for a game and nice take on the theme! I like the artstyle of the characters and the art. I appreciate that you made both 2d and 3d art you had to examine, to keep the difficulty and actions a bit varied (I had a lot more trouble finding the differences in the statues, especially the knight statue). It would be nice if there were more different artworks, and only one of each type could be real. Now I got the same painting four times in a row, of which two where real! :) But I understand that that's difficult in the short amount of time we had.
It's a fun game, good job!