Really enjoyed the demo on the 360. Controls felt tight and the mechanics seem nicely balanced between shooting and melee. The power axe is a great weapon to carve greenskins with :D
This is something I did last week - It took me just under two days. Breakdowns and more details here: http://www.artstation.com/artwork/modern-axe-for-the-forest
Now you have full OSL in ,ax. Also most renderer has AO/Curvature shader. Even RichDirt still available I think. I don't think you would miss that much From MR.
Some color variation in the texture would go a long way, because he looks like he's been through a lot of shit. Also, the axe could be quite a bit bigger. Other than that, it looks amazing!
UPDATE: Textures and lighting improved. Wireframe: ~57K tris including the axe. Vikings were actually very careful of their looks. They had a sense of fashion and grooming. Reference: http://www.hurstwic.org/history/articles/daily_living/text/health_and_medicine.htm