I like the dark blue you painted his armour in, I think it is a good contast to the gold trim. His face is very well-done and his organic eye also looks very nice.
Yeah... I have to agree with droogie, face is really nicely done, but... IMHO the overall look of the mini is too dark a lil bit, and I don't mean the colors you picked are too dark, but i think they need more highlighting. Anyway good job !!