Okay, there really wasn't any celtic divinity with a weasel head an antlers... But the idea sounded nice and it makes me think Cernunnos, god of wildlife and fertility. It could also be any kind of minor divinity associated with a forest, a spring or a tree.
Kind of art nouveau inspired, but with celtic knots instead of flowery patterns.
Photoshop CS5 and my old Wacom tablet, cause the small Bamboo is dead. Buy new stuff, they said...EDIT
OMG a daily deviation for real???
Thanks to all the groups that featured my work and all the deviants who faved it!