Cool but nothing more
Good point = interactivity i.e. let the player be the artist. I applaude that.
Graphics are not original but you get away this it because this is a tribute piece.
However, this is quite plain. Controls are mediocre (double-click to zoom instead of single click for instance).
A drag and drop type game is good for a start. Go back to the drawing board and come back with something more original next time.