on second thought, her feet are smaller than the guys feet, and her heels are behind his, if you trace a line from both of their heels.
Just one little thing: when looking at their feet, the girl seems to be behind the man, but when looking at her head… It appears she is not. Kind of strange for me, unless it's a puppet :)
Ok, assuming they are side by side... her (big) head should really be on the front ? I'm talking about visual feeling. But maybe I'm the only one to think that way ! :)