As custom minifigures go the Titanious By Natsty is amazing. Natsty is fast becoming one of the top minifig customisers on Flickr, with a talent for creativity, painting, and custom built weapons.
The oversized helmet is great and goes well with the body armour, although I am not sure have fast this warrior would be able to move in it! Although if you were to bump into Titanious, I would suggest you run!
Great work, and fantastic photograph!