Looks amazing! I think this is superb work already, so I'm just going to nitpick a bit.
The faces look a bit flat to me, would be nice to see some shadow beneath the hair. Also their eyes are quite square, would look better if they were a bit rounder.
The shading on the helm could use more depth.
The environment has awesome details and feeling, but it's a bit too straight and strict in it's overall shape. Would be nice if you had some perspective on the house so it's not as perfectly straight.
The green tunic guy should have his belt buckle offset to make it seem more like he's turned to the right.
I also love the bright blue colors of the swords guy, but how would that look inside a dungeon or a house?
Although a palette switch for inside/outside would be sweet
