Method: Line drawing inked with Rotring Artpen. Inked with Pentel brush pens.
A hydra. Strictly speaking, this is a mixture of ink and watercolour since the grey's from a watercolour paint pen thing... but it comes out looking more like ink. It also doesn't take well to my trying to put highlights in with a white gel pen so I probably won't be buying more from that range. Still, don't know 'til you try.