Hmm. I get what you’re trying to put across with this, but the flow seems a little bit off somehow.
The sentence “Fynn watched her turned back, noticing how loose her clothes had gotten and wondering why he’d never considered it before” could use a little work, maybe split it into two sentences like: “Fynn studied her turned back, noticing how loose her clothes were. He wondered why he’d never considered it before”.
Ranx