Progress

After a seriously long and heavy night of working I have managed to made some good progress with the model. I went over the face topology with the line tool until I had the whole face covered and then converted it to an editable polly. I then attached all of the shapes and welded the vertices. I then went about the tricky process of pulling all of the different vertices back to relation to the side on photo to give the mask its depth. After pulling all of the points back from the side view alone, I then went to the perspective view so that I could actually see what the mask looked like. I then went about doing some lengthy tweaking to get everything looking good. I found the cut and the remove tools extremely useful for adding in extra lines and quads once the mask was in its 3d form to make parts of it easier to manipulate. I remember seeing James using soft selection to tweak his mask, but I preferred to just move the vertices one at a time personally.
But anyway, after a good 4 or so hours of work I've come up with this, please let me know what you think.