before trying to help out, i'd like more info on what is supposed to be going on in these paintings, what is it that you're trying to illustrate! cheers!
I love the colours you're using, that's what struck me first. The second thing was that the anatomy on the woman is a bit off, I see that's she twisting at the waist but doesn't look natural, and her boobs and bum look too rounded and 'stuck on'. i suggest getting some reference of that pose, or trying different dynamic poses, she looks a little static for someone being shot at.
I tweaked the silhouette a little. The pose wasn't very dynamic.
I twisted her pelvis a little and put her left leg more in the back.
That way it kind of feels more like she's doing something as opposed to just standing there.
Hope that helps!
Love the color usage btw!
edit:
Oh she's being shot at, didn't really see that. In that case, yeah, it's probably best to find some reference and make her twist around the waist more.