Hmm, yes--I see. Thank you for taking the time to sketch this out--I would have had trouble seeing it, but you've made it much clearer.
Partly, she's leaning on her unstrung bow, which is mostly out of the frame. But mostly, the model I was sketching from only had metal armor on one shoulder, and when I duplicated it over to cover both, I probably slid it on wrong. This might be fixable--I'll have to fool with it.
In the meanwhile, here is another background to choose from.
Thanks so much for the constructive help--I love having a place to show off where I can always count on the comments to help me make the next one better. Astonishing how much I've learned from sketching for ENWorld!