Your link doesn't work.
Oops! It should be fixed, now. I put "" in there.

Also, the 'female' just looks like a young teenage boy due to its lack of height and hair -- doesn't come across as an adult woman at all unfortunately. You could also try a more clearly female pose and possibly display the breasts in silhouette to emphasize the long legs and curves if you still require the short hair.
If you kept the current pose, you could try shrinking the feet and lower-legs a bit to make her more stylistically female because right now, you're somewhat suggesting she's got a size-15-in-men's-shoes like the big burly guy (pixel-wise) -- or the other way around, which could still work with a more clearly female form/pose, but with the added (dis?)advantage that the guy looks more comical due to his very small legs -- though his face currently looks too feminine and childlike to really work comically with that style of body (jut the chin, shrink the mouth, turn the head to the side, etc. etc. to increase his look of manliness).
Thanks for the input, astraldata!
I'm not necessarily going for a very feminine look as she is supposed to be just another knight, undistinguished by sex, but I did divide up her breastplate to give an impression of breasts (defeating the practical purpose of a breastplate). I'm not really sure what you meant by breasts in silhouette, so I gave it a shot.
I got rid of the rosy cheeks of the dude and gave him a bit of stubble/beard, reconfigured his torso a bit as well as the whole lower body, because something felt wrong about the position of his legs or hips. I'm still not satisfied, but I figured I'd just throw it out there for further thoughts.

I was actually just doing a cluster study on your stuff.
Cool sprites.
Cool! And thanks, Ambivorous.