Mainly in the legs and the butt, also in the shoulders. you should have flowing edge loops flowing across the leg, but you seem to have these wierd square extrusions
Much better work these days. You should look at the elbow again - look at your own - the upperarm and lowerarm dont stop at the elbow, thats the point of intersection. They flow into one another. Also, the upper arm mass in yours looks like one huge muscle. Did out a few anatomy books, and study the flow of the body - that…