this is a good idea....i've been doing black mage/vivi cosplay for 3 years and have wanted to do a modern black mage or "rave mage"....if your doing something close to the picture then what about adding a red scarf around the neck or hanging louse around your collar and sholders and what about a band around your hat....what about belt buckles like squall from ff8...and theres something lacking from your pants....i know....what about something like the face on this guys pants...
http://images.elfwood.com/fanq/q/u/quigley2/wizardmon.jpgi have something like that on my black jeans with some nice silver teeth and bright red eye's...everyone that i've run into love them and ask's where i got them (made them) and the zipper mouth act's like an extra pocket....maybe some other shirt cant hurt....something with an odd patern perhaps