Sinking mermaid sketch

I did most of this one when I was up at Orkney a few months ago but I didn't have access to internet so I couldn't find references for sharks and ships. I found it again a few days ago and decided to finish it off.

 I was originally thinking of doing it in watercolour, all blue apart from red blood...now I'm considering painting it on wood. I guess we'll see when I get around to it.

Here be the references I used:

3D model of a pirate galleon, found here.

Top shark, found here.

Bottom shark, found here.