Loved the idea and the illustrations. My only issue is control-wise; rather than find the right position in a blank screen, I'd have left some kind of markers in the background to suggest proper position, and also let the user rotate the objects themselves in the perfect (or very close to perfect) orientation. Talking about the pencils level, for example, since I didn't see any particular order nor I knew how far apart they had to be. But really cool idea nonetheless!