The design doc stated, simply:
A young female human wizard with black hair who always wears white trimmed in gold.
The one caveat being that the image must be themed after any major RPG. I did a few thumbs in the D&D vein (couple examples below), but settled into a more suiting Cyberpunk/Shadowrun mode. I was a Blade Runner kid, after all. Character concept was put together over a lunch break and the final illustration was done over the course of two days. Good times!