The rear legs need improvement. The lower part of the left leg is too human-like. It should be a little bit thinner, and its proportions should be changed somewhat. It should be thinnest in the middle, and then get slightly wider towards the foot. The lower leg should appear almost straight, just slightly curved inwards. The left foot is too human-like too. The heel should be bigger and rounder, the metatarsals should be shorter and thicker, so that the skin in front of the joint forms a wrinkle.
Depending on the posture you'd like Fyn to have, the right rear foot should be either bigger, or it should be the size you've drawn, but facing 30 degrees to the right and have a wrinkle on the left side, indicating the foot is placed outwards and bent. I recommend the second posture for stability.