I redlined it for you. Hope this helps

Alright, where I put the red circle around her elbow? even for an anthro, that's a really low elbow, I moved it up a bit, about where the lower ribcage is. That's usually proportionate for anthros/humans. (I also put a red line where the joint should be.)
the knee also was a bit far out, so I circled about where it should be (if the leg was stretched that way) and drew it redlined as such.
I'm sorry if any of these things were diliberate ^.^; hope this helps.