I did these sketches a while back and have since played around with the design a bit more. The character is far from set in stone and I still want to experiment with style. But for now, here is Rumi's character design in its first iteration:
Species: Ailurus Fulgens (red panda!)
A zoo escapee who retains a captive mentality in the wild. Accustomed to being separated from others by a wall of glass, she walks around with a box over her head.