Xander: Characters in the RWBYverse have names relating to or evoking a color (which they're usually themed after) due to historical lore. They range pretty dramatically, with some characters simply having another languages word for a color as their name, some having names that just sound like a color (Blake=Black) and some referencing objects that are a color (Such as Nora, who's name references a pink flower). 

Tearstone: She looks good to me. The one thing I want to say is for her Semblance, I'm assuming that keeping an illusion in existence drains aura, and the more illusions she has the faster her aura is drained? Otherwise I could see it getting a little bit crazy. And, more info for the backstory isn't necessary to me, but I do enjoy hearing such things so feel free to PM me said details if you want to.