Poor quality image...

I am currently having issues with image quality. The photoshop image of my face is very pixleated. This means when I zoom in to add the lines I cannot work out what line goes where etc... I have tried to source an answer to this problem, to no avail. Work is on hold until I can ask Richard for some answers.

While I'm waiting, here shows my topology for the head. I used the pen tool and followed the flow of the features of my face. I created many quads that will eventually be used to '3D' the head.