I recognize this is coming to the party really late, but two things in conjuncture prevent the female sprite from looking truly feminine-- while I appreciate a lot of folk go "boobs! chick!", a better way to tell if what you're looking at is a woman is by a hip/shoulder ratio (not all chicks have great racks), and the female sprite is decided lacking in hips. Which leads directly into the second thing that makes the sprite look less than feminine: her lack of bottom. In the side view, she looks very unbalanced, and the back view really shows she has no junk in the trunk.
I figured to mentioned these things because while obviously it is rather after the fact, it's not so far gone that the issue can't be considered, right?
All development of pixel art, maps and other graphics.