Eon J'Toul - Cool background story! I like the design of the character - he definitely feels like a mercenary. The only thing that I would change would be to paint his white arms a darker color. If they're mechanical, maybe "pewter" or some sort of dark metallic color.
The Turbo Tank Division Commander looks pretty badass. Is that a modified BBi helmet? I like the color choice, it kind of reminds me of a U.N. Peacekeeper
Maybe you could add a piece of twist-tie (like the things that hold figures into the packaging) to give his helmet a communications microphone (like what Gen. Veers has)?
I really like all of the softgoods that you do - it's always a bonus to see softgoods! I agree with CHEWIE - using some different color fabrics would help the figures stand out a bit more.
I also agree with Spectre's comments about the weapons - small tweaks on the modern weapons can really make a weapon look different. Cutting off and switching barrels, repositioning magazines and sights, as well as adding other bits to the guns can make a world of difference.
Keep up the great work!