[Anything I make for this drawing will go to the Missions Fundraiser for the International Christian Church (ICC).]
This was done with a pencil underdrawing, gel pens on top, and Crayola or RoseArt markers to fill it all in. Casey is wearing something similar to her usual color scheme but a different set of clothes; they're probably something she picked up on a planet somewhere.
Another fine character sketch! Like the head of hair sticking up.
Thanks! In anime it's called the "idiot hair."