In the right (viewer's left) arm, the outline his broken with the midtone of the arm. I'd personally use the next darkest shade to complete the outline, but it'll still be light enough to give the look of a rounded line.
The next is the left (viewer's right) arm, the shadow on the inside of the elbow looks too dark. If he's going to hold a shield, I'd suggest darken the entire arm as though the shield was casting a shadow, otherwise that shadow should be shallowed by lighting it up by a shade and maybe give it a smoother transition to the midtones of the forearm and upper arm.
And then there's the left (viewer's right) thigh, which looks flat compared to the rest of the limbs. You could give it more form by using the cast shadow of the sword, like you did with the other leg.
You've made some impressive progress on this, by the way. It's always good to see someone take criticisms and stick with a piece for the sake of improvement.