Looks pretty good 
Nice!
"City of Heroes. April 27, 2004 - August 31, 2012. Obliterated not with a weapon of mass destruction, not by an all-powerful supervillain... but by a cold-hearted and cowardly corporate suck-up."
awesome stuff. But labelling it "SFW" now makes me wonder what an NSFW picture of your tanker and mud pots would look like.
That makes me giggle. I like it. Maybe you could have some mud dripping off her lifted hand?
http://www.deviantart.com/deviation/58969921/
In this revision I fixed the hand for a more realistic hand gesture (I physically tried it and realized that would break her hand big time!) and took up the idea of giving her hand some mud! Since the MSPaint idea with Bezier curves didn't work out as anticipated I relined the original drawing and rescanned it, then applied some erasing clean-up on the rogue edges and some level/contrast changes to darken the lines further. Lastly for the revision, I did the baseline colors for the entire piece.
My next objective is to work some lighting and shading, with maybe more details to throw in with the rest of the ground and the trees: maybe stick a background behind it all or something...
http://www.deviantart.com/deviation/58969921/
My current piece right now is my tanker as a contribution to Tanker Tuesday this month, and this is my rough sketch. Its rather plain and simple, since much of the enviroment around consists of simple lines and the entire drawing's done with a #2 mechanical 0.5mm pencil.
My current self-debate is to do digital inking and detailing or hand detailing and inking. The end result will definately be digital coloring.
side note: the thing on the handle of her axe sticking out of the mud: that's her short shorts she wears over her costume.