For this character i don't think there should be a black and white since he has like a skull face i don't think colors would work better.well.. what now?
Holy:
Looks awesome! Just the Flux and TGS is in an odd place... could you move it somewhere else? i dont know just try a place or two where it doesnt look so out of place.
Cercopes: it looks too sparky still.. :/
I think I got a better looking position for the lettering
Well alright i'm done, this is my entry I think it looks good and it's 6 in the morning here i'm very tired.