the girl looks kinda wonky but her pose is more interesting shows more character, and her colour contrast is better.
consider that for next sprites

did some messing with this old environment.



also messing with some different rock shapes (just a few tiles done).

cool sprite and cool idea 

first thing that caught my eye was whats going on with the rear hand.
at first seemed like he was loading the gun or something.
now i see what its doing but still think u should change it so it doesn't look like its involved with the gun.

front leg animation needs smoothing its only 2 frames.

have u tried passing a gentle 1 pixel waving motion across the whole body?
by that i mean front section waves up, then hips, then legs as front drops down and so forth.
this would be in addition to the existing animations of each part.
just in idea.

i think if the weight is on the right leg then the hip should be a bit higher than the left leg?
the left leg should look more like its kinda hanging lightly?