Jacky and Osby's Arm

I doodled on this a few hours before bed last night. I love to draw Jacky's Cat's Way clothes. She has boring fashion sense at home, but the cats dress her up pretty good.
There's a story behind the arm but I'll get to that later. The main thing to know about Jacky in the Cat's Way is that she has been cut off from using Shydog (by the collar on her neck), and therefore a weapon becomes a necessity.

I'm struggling with what part of her timeline I've pulled her from for Hetherev. In her challenges the collar is absent, so I'll have to explain that somehow.