He is looking very good, I think your confidence with samurai is coming on very well, as its a skill in itself picking colours for samurai and know what different pieces of armour are made of.
I see you have decided to do the eyes, and although I don't like painting eyes on them and did not design the eyes to be painted, because I feel the figures look more realistic that way. I think the eyes have come out quite well on that one.
Keep it up I'm looking forward to seeing him finished