I wonder if you're jumping into the topology too quickly. Those are a lot of loops that you're going to have to push around if you later decide to adjust the proportions or something. I suggest moving the model up so that the feet will stand on the grid. Just having the whole body blocked out before anything else will can…
it seems that you have gotten the overall proportions right. the head is still way too blocky, it needs some additional horizontal edgeloops. not much 2-3 should suffice. this is just so you can smooth it out to get a rounder shape for the head. from here you could try to subdivide the mesh and start blocking out muscle…