I haven't figured out what kind of character I'd like to play yet. I have a vague notion of wanting to play an aquatic character linked in some way to pretty underwater landscapes.
Like this 
and 
and 
.
...But I'm having trouble coming up with character motivations.
Addendum: I wonder if maybe a 'Sea Speaker' would be a good officer role to have on a fantasy ship. Someone who can Speak With Animals or at higher levels Commune With Nature to get an idea of what lies below the water, whether it be treasure or monsters.