
1) Find or make a palette you like for water. I used fool's palette from "Middle of Nowhere"
2) Fill in a 32x32 with your base color.
3) Take a shade lighter and make a tile-able grid. Make the base line 2-3 pixels wide.
4) Take a shade lighter than that, and go through the middle of the line.
5) Take a shade darker than your base color, and shade in the middle of the base color
6) Take your lightest shade and lightly go through and add highlights
7) Take your darkest color and more shadows, etc.
I might add more for different water types later on. Tell me if you learned anything. Not that elaborate of a Tutorial, but its a tutorial. ;]