This started as a quickie, very rough sketch, and it sort of shows. The anatomy could be better, but overall I'm pretty happy with this.

Done (almost) entirely in OpenCanvas, with a few stopovers in Paintshop Pro to move around some bits. I wish OC had an area select tool for that sort of thing.

Also done entirely with my tablet, which I'm finally starting to feel comfortable using.

Both firsts for me, as far as any sort of remotely finished work goes.