You know my pet peeve lately is always scale. If I take my eye on a line from the sword to the gold bit to the left...the bit that looks like a doorway of some sort to me... there is very little between them visually that helps my brain grab the relative sizes in perspective...thus the sword looks like it is the size of a large door. The height of it seems a bit odd too...almost like the bottom of the sword is at the height of the top of the door. I typically picture floating icons of incredible power to wind up about chest or at highest eye height. Of course I could be all wrong...that thing might not be a door at all... I think I like the lighting on the bottom left best though I am assuming you'll make the numbus less "regular" in post work.. I don't have as much trouble with the reds marks on the floor other than that they look like they lay on top of the stones rather than seeming to follow the countour of them as dried or fresh blood would do.