That is a really well done piece of art, it has a really nice style; you can tell it's a picture, but it has visual texture that makes it look almost real. It looks like an ork wearing a tribal head mask that is mourning before he faces war. At least, that's how I perceive it, mainly due to him not being wounded but kneeling, while having his head down, similar to mourning the dead, and the rain gives of a sad atmosphere to the picture.
It's really well done.