http://psychotron-3000.deviantart.com/#/d358mei
Here you go. Ignore the green one, is amazingly ugly. Just a couple of ideas.
You're welcomed to try it out. I may even repost your work here on Pixel Joint with credit.
Hmmm....
Would you object if I did a few colour swaps and put them on my Deviantart and I'll link em to you to see? I'll remove them after.
But I DO see what you mean with the dull look. You could have it militant but still colourful and lively with varying saturation and certain colours just sort of work, yknow.
On another note I really like the original colour scheme :)
I mainly picked the orange-grey combo because I wanted something that looked more...colorful. The others looked a bit machine-ish. Too military; however I guess a military look would still be the most practical.
I don't know I'm just not completely satisfied with grey. It looks kinda dull. It's like the dude in Iron Man who made a copy of Tony Stark's suit but for the Army. He took away the hero colors and made it more militant-looking. I would go with the original sand-like color scheme but someone once complained that the colors were too soft.
I like the grey, but with the red-ish of the originals leg colour. How do you think that would look? Do not go for the orange one though. It is unpleasant imo. XD
Cheers.
Well, feel free to use any bits and colours and stuff.
Glad I could help