A quick digi-doodle of Mugenbine Mugenbuilder.
I used ArtRage‘s pen tool for this one. If you’ve got a graphics tablet, I’d recommend checking the free paint program out. Some features have been disabled — including the support for layers — in order to entice you to pay 20 bucks for the full version but there’s enough to play with. If you need further convincing, the forum has some impressive samples of user-created art.