Athena--Art Club Picture

I drew this in Art Club. Devin was in charge of the 'lesson' and it was mythology. I called athena and this is the sketch I came away with. ^.^ I like it. Esspesically the owl. Tee hee.

Anyway I need this finish by the monday after next...i dunno the date...and I'm wondering what media I should use for this. Watercolors...colored pencils...computer....etc. Your opinion is appreciated! ^.^
Annabeth's Happy Place
Courage of Athena
Athena--Art Club
VT : Athena Grace
The Gods of War