Thanks that’s super helpful 
I think the reason his shoulders looks o broad in the picture is he’s in a T pose and his shoulder/arm muscle transition needed a little work, it was something I was more confident with so I didn’t mention it but since then I’ve been having a little trouble getting my topology into a state where I can define the shoulder well, I’m having a similar issue with the knee, to get the effect I want I need curved topology and it takes time to built it in without distorting it a load, however I am confident with the techniques, I don’t think there’ll be any shortcuts, I’m pushing vertex and using slide edge when I can, it’s definitely starting to shape up nicely, the thing that looks like a junction on the nose is a topology issue, I hadn’t gotten rid of the N-Gons on the mesh when I took the screenshot and the smoothing was going wrong, I fixed the eye inset thingy, I just made a velociraptor and for that I wanted a really strong eye socket, that was the first face I’ve ever built for anything so I’m not very experienced yet xD
Pulling the eyes out helped to soften the cheekbone transition but I smoothed it off a bit more as it still looked a little sharp and the mouth and the brow were areas I didn’t think to look at for some reason, I can’t get at it till I’m in work tomorrow but I’ll give more of a curvature to the cheeks by pulling out 4-5 points on them? Maybe pull out the top of the eye socket as that looks a little soft to me? I think the mouth needs a little widening, I’ll have a look at that too, the only things I’m not sure what to do about are the nostrils and the chin, I’ve spent the evening staring at people’s noses whenever I spoke to them and I think there’s sort of a circular lump to the side of the nostrils, I was going to add an edge loop going around them then round it all off a little?
Also I don’t know the first thing about making ears, I’m tempted to wuss out and take it into Zbrush for them but I would like to be able to do them, any tips? I think my best bet would be to use a reference image to make a polygon the same shape with all the verts I need then put the topology onto it with split poly tool, making a very basic low res ear so I can then put it onto the side of the head, is it a better idea to do this or make a detailed ear then try to reduce the no. of verts along the edge? I think I’d end up with an awful lot of triangles if I did the latter and on something like an ear would that not make loads of heavy pinching?
Most of my face topology seems to be working for me pretty well, I did use a reference for how to do the topology of a face and it seems to be working well, my first one I just tried to chisel out of a sphere and it was very ugly, for this one I took a sphere and deleted all the front faces so I could totally re-do the topology, took some time but the results were nice.
I have been trying to find anatomy references but it’s tricky to find good free ones, I will have a look at artnatomy. Finally how can I make the chin look nicer, I’ve done a lot of playing with it and it always looks a little off, do you have any tips for getting the shape right?