This is really good! I love how you blended the orange and red with the silver, Gray, and black; and keeping the gold as a detail really let it shine! Not liking the wings though, they look great but it looks like a bland accessory with no real purpose. Still looks great if you took the time to give it some of that fine orange and red it'll be even more basses then it already is.
Man.. I can't draw mecha or tech or cyborgs or robots (or ANYTHING under that category) to save my life! The varying helmets and body types are very refreshing, and i LOVE how you incorperated a lithe figure into this fella; very sharp, very sleek and sexy- very DEADLY <3 The shapes and designs are original- VERY creative- and the clean lines and colour are just awsome; not too over crowed or confusing.