Barn owls look spooky (when they're full grown, as opposed to little fluffballs).
Also, drawing them like that saves me the hassle of drawing their feet. :D
Those are all painted on seriously heavy duty watercolour paper, in ACEO format - 2.5 by 3.5 inches. I mainly used acrylic ink, but there's a bit of other stuff mixed in.
The top right one is sold, the other available.
Comments and feedback are always appreciated!