I remembered I used to do this as a child.
The dog is entirely imaginary though.
I did these a few weeks ago, but just got around to scanning them in college after term started. Just playing around with black and white pencil images but with highlighted areas in watercolour to see how the effect will turn out.
These are some sketches I did of Mook's older sister, created at the same time as Mook. I think I prefer this version of the underwater sleigh, and I quite like the second sketch too.