Thanks! I used to have a cos-play rival awhile back so I kind of had a bit of a costume making competition with her for a few years. For that specific con she dressed as Tsukiyomi, or Harle, in English, also from Chrono Cross.
I managed to find some other photos from that convention:
That's me and my rival.
Also, we managed to run into a Kidd there as well, so this turned out to be a nice picture as well. Kinda wish the quality was a bit better, but this was before the age of digital cameras...
Kind of a funny story behind that con actually. They typically had a cosplay contest format where one could do a small comedy sketch or skit on stage. My skit won a prize. I entered the stage while playing a very dark ominous Chrono Cross theme, grabbed the mic, cued the music to stop and sang the entire "Ballad of Meow Mix". For those unfamiliar with the Meow Mix commercial, it kinda goes like this: