I think its awesome you put so much time into designing and creating this cosplay. If you don't mind I'm going to add my own critique in here, I'll try to be as nice as I can :3
The blue is a little overwhelming for the whole costume, although it matches with the tribal print, Windurst colors are green and beige.
I give you an A for effort. Trying to make a suitable Mithra costume has to be difficult and posting it on a website where you're under the scrutiny of thousands of FFXI fans is even more so.