Just saw your edit:
I like the lighter one. Just my personal preference. What I find really striking about the image is the parts graphics. Did Blue do these? Whoever did deserves very high praise!
The parts graphics were
drawn by Charity, then inked by Blue concocted by Blue from pieces of some other sketches, then inked by Blue, then colored by Catherine, then had a final layer of texturing by myself to give them that gritty look. It takes a village! That's true of most of the art in this game, actually!
And incidentally, Catherine has now joined our staff on a fulltime basis, at least temporarily for the rest of the year. Two artists, woo! Look at us now.
I think the results speak for themselves. Pretty much every screenshot has some touches from those two and me in terms of art, and then a lot of times some various other artists. Raynaldo on icons, Holly and Charity and Genna on line art, as well as another wishes-to-remain-anonymous fellow on lineart. And I think that's everyone. Having pretty much everything final-colored by Catherine is what makes it all look so consistent though.