"Virgin goddess of wisdom, handicrafts, defense and strategic warfare"
Fwoarr, finally done with this! The only Olympian who I started out with not knowing what the hell to do! D': But here we go, and I'm so happy with it!
Symbols used: Colour used are gold, orange, yellow and hints of emerald green and blue - all colours used to represent Athena. A golden shield in the iris - one of Athena's many symbols as the goddess of battle strategy. Prevalence of gold, orange and yellow are importance because the Sun is one of Athena's symbols too.
Just thought I'd add in: I think it looks fine without the eyebrow. The eye is the main focus, is it not? It's possible that the eyebrow would be a distraction. My eyebrows are blond; extremely light in color. In fact, they appear invisible to people.