Graphics programming (actual code) can do alot as well as a good artist, there are things a programmer can improve that an artist cannot, and there are things artists can deal with that programmers can't.
One of those things is sweet lighting, real shadows (not shadows I can get from the ogre engine), and sweet environmental effects, (fires and smoke and dust and whatnot)
Another thing is those skyboxes (they're soooo low resolution and completely static, not to mention theyre boxes!)
Don't get me wrong please, I'm not complaining! I'm suggesting! I'm pointing out what can be improved is all, just as the graphics programmers they do have know already what can be done... As we all know graphics don't make a game but they can definately make a game more immersive!
This game has AMAZING gameplay and mechanics, the only thing that could hinder it on the world market is graphics.
I'd also like to see some kind of distortion pixel shader when you get shot with an arrow, or perhaps a dizzying effect when you get hit hard, that would rock!