I don't think I'm the right person to ask because my anatomy belongs in the recycling center

use lines to help guide the legs and tail Its very easy Also look at dog legs/cat legs to help.

the paws are fine the head is fine i like how you use the circles for your anatomy but using shapes in limbs are also useful the front left leg is a little broken so i suggest fixing that by looking at other art that has better anatomy or look at animal pictures for reference the hind is a little blocky so i suggest make it go smooth with the circle and not make it a hill overall its pretty good! :)