woohoo great progress 
i love the vehicle and the character, cool designs
just a thing about the guy: i think the area where the hole in the iris is supposed to be is extruded ? well it looks wrong…might be the lighting
edit mh sorry i didn’t want to take your piece apart but i noticed some other things:
those skin “flaps” under the eyes look a bit too hard towards the nose, i think they should look more like they’re hanging down, so they should get thicker towards the middle and almost invisible towards the sides
and the helmet: those bolts you got on there could use some kind of trim on the helmet, something on the helmet that makes it look like it was made to house these bolts
like this:
