Tiamat is... well, my knowledge of Babylonian mythology is sketchy at best, so I'll leave you to look her up for yourself this time. To be honest, I just wanted a sea goddess.
I don't know why I'm doing goddesses lately. I'm not usually a goddessy person.
The scanner killed this one as usual, but I was expecting it. Maybe I'll start signing my posted work "D.O. & Scanner". It's pretty much deserving a co-credit by this point. Anyway, please just do me the favour of assuming that there is actually a bit of sublteness (and shading, even) in the original. My co-creator apparently didn't think that it was necessary.