i dunno about this.. looks liek the girl is jumping .. which would be kinda weird if you trying to hang something that artfull

The girl looks very out of place, she is casting no shadow, and the edges are very hard, making her look more pasted on than the pictures she is hanging. The Blur Tool, with a small brush and low opacity, around the edges will help the hard edge. The weird pose and shadow problem are a different matter.

I agree, some shadows cast by the girl would help this tremendously.

Cool. I really like this concept. I think I might do it with the actual picture.

she looks like she is jumping and sticking the pics on the wall...