Alive it looked even better than in pictures. And you were wondering if it looked good. I can tell it was brilliant, not good, and better than i though it will look like .
As for convention maybe there were no ppl who were playing CC so that's why no one recognized you. It happens. It wasn't "Mobile Game Convention" after all
I was thinking that maybe next time try to think about some fighting performance, to add some background to it. I don't know how solid your costume is, but i think it should survive some swings, cuts and pushes so it would look like you are fighting with someone and in the end you are winning. Of maybe ask your friend to wear PD costume so you will have real opponent to performance . Well this is at least what i would do, to make it look little differently.
But once again i think this is one of best cosplay costumes i saw, and for sure one or most complexed ones. Keep it up.