She's a karaoke queen talented enough she could have made it big, but she's shy singing in front of large crowds. This causes her to begin with her eyes closed and only open them once she's really into the song and/or hears cheering from audience. The agency wanted her to begin with eyes open and only close if really into the song (like most do) unable to do this they didn't keep her.

When on stage she uses the name Castella, which is a combination of her first and last name that she feels is similar to "cat star". She sings 60's songs remade slightly to be more modern. (Kind of like The Spazzys "My boyfriend's Back")

Clothing
She wears black jean shorts with open light blue-jean jacket, a white tank-top underneath (if drawn with jacket off, the tank is just straps) and no shoes. For accessories she wears a thin golden anklet on her left foot, with a moonstone (orb) ring on her right hand (middle finger) and a choker necklace weaved from leather.

Ref Sheet

Credit where Credit Due:
line art
Thanks for all the coloring tricks (you know who you are).
Thanks for song example, and help in clothing ideas (you also know who you are).

About:
After coloring the line art (for fun and to help keep a steady hand for render-making), I liked the design I came up with that slowly the character started to show some life for me. I've been toying with the image four days now and eventually couldn't do anything more to it. The image shows the idea though, so I'm happy with that.