Johan,
Good piece. If I may, I would like to point out a few things I observed.
The figure in red looks as if he's "planted" into the ground instead of standing on it.
I see where you were going with the "dirt" coming over the tops of the feet. But the ground dosn't look "disturbed" enough. Also, the feet/ankles look far too clean for men who have been sparing.
The blood looks too"Hollywood" IMO. I feel it would look better if it were in "streams" going in different directions. This would give a "feeling" of movement.
Some patches of dust/dirt on the wound would look cool too. And over the body in spots showing that they may have fallen at some point in the dual.
Veins on the biceps/arms wouldn't hurt either.
The red clothing (sorry, don't know the correct term) looks too shiny. Could be the lighting though.
The armor looks fantastic. No critique there.
I feel these little things was the difference between a silver and gold.
Good luck with your next project.
Jason