I'm fairly happy with this 80x80 character portrait, but I'd still like to know if there's anything I could be doing better.

I designed this character for my game, Wings of Aetos, in which each character is meant to have an element and combat style. For the element of water, I chose a koi theme as well as a complementary samurai style.
The pattern on the scalp and neck bring to mind the fish, while the white face and orange around the eyes are meant to suggest kabuki makeup. I used a model for the proportions, but the hair and wardrobe are a variations on characters in several Japanese period films.
One challenge I set myself was to try to represent a water-themed character without the use of the color blue, although I find the green of the eyes a good fit here. The expression is made to look emotionless and fish-like, like someone who is interested in what they see, but perhaps a bit off-putting.