I don't know about contrast but definitely adding white to Blitz will give you instant metallic look. Other than that - I had to think quite a bit about the white mass up front. At first I thought it was a power (think Hadoken from Street Fighter) but then I saw the chains and thought, "punching bag?" Maybe if you added seams or made the contrast between the chains and Vi so they don't blend in as well, it would've been better overall. My 2 cents... :>