I just think that the chest armor looks a little bit shrunken, but the overall impression is great. I like the movement and the glow of the lighsaber a lot, also the textures on the armor and the kama.
What's so incredibly awesome about the Mandalorians is that they don't have to be Force-sensitive in order to be badass characters. Too often, Star Wars literature puts too much emphasis on Jedi/Sith characters and makes the rest of us "common" people feel pretty useless to the story.
Let's be honest, though. Being a Force-sensitive Mando would be doubly awesome.