Updates:

Sorry for the lull in progress recently, I've been doing a lot of programming. Anywho, I changed up the colors a bit, changed the grass, and worked on shading the legs and boots in the run (mostly the foreground boot; back boot is rough.) Not too happy with the boot though... :/
Also, the movement of the skirt is pretty erratic; definitely needs work.
I've been trying to put my finger on exactly what I don't like about the run animation, and I think it's that the head is too static compared to the rest of the body. I'm not usually a fan of this, but do you think some head rotation would help? Ugh, I want to be done with it....
I don't know if it makes a difference to anyone, but I should probably mention the game will run at 2x zoom (or greater if you've got a hi-res monitor) so I might be obsessing over pixel tech even more than usual.