Redesigning another character

I decided to redesign another one of my characters yesterday and didn't finish the initial design line work until midnight. However, thinking about it before I went to sleep, I didn't quite like the costume design; it didn't make sense for the character. Clothing wise, I wonder how it'll hold in combat. The collar design doesn't sit well with me yet. Or maybe it's those arm warmers I'm disliking since they seem to clash with the rest of the costume. If I made them less puffy, it might be better. Or maybe to match the hair tie/ornament, they should be in a similar style.