Ah crap, duh!
Highlights to indicate liquid.

But what did you mean by bingowing?


MvC = Marvel vs. Capcom (samples above), which I chose to borrow from (but not outright imitate) so I could use games in that style as reference material - and there are a bunch of them.
But the project I'm cutting my teeth on is more like a 2d Diablo, but with more harrowing subject matter. He's set in a world where everything has been affected by an addictive, mutagenic drug - this is what's seeping out of him.
Your rough of the knee plates is great. I gave him mutated grub-looking legs, but he stands on the point of the plates. I like the contrast of something so big and nasty standing on dainty little points. But I've yet to indicate how they're staying on while supporting his weight.
The "screws" on his belly I meant to remove. They were going to be the corners of a big, horrible mouth that opened for bigger attacks. But I decided that I liked his design enough without it. That's why his belly ended up so blank - I was saving that space.
Re: shading, for whatever reason I keep imagining the light source as being directly to the right rather than to the right
and in the background/foreground.
Tried to keep this brief, but failed spectacularly. Sorry! I will update the sprite as soon as I have a spare moment.