New concept I'm working on in order to practice my digital painting. He's called The Engineer, and he goes round fresh battlefields in some far future building his army of mismatched undead mechs out of fallen soldiers and wrecked machinery. So he's got lots of tools and extendable arms and pistons. He could even be a bit 'junkbot' himself, where he's fixed himself or added new limbs etc.
Obviously it's just a silhouette at the moment, but I've just drawn up the perspective so should post a rendering soon.. Time's not on my side at the moment.
More to come.