I've just improved it too here...
Having watched some illustartor tutorials I learnt about the object -> path -> outline strokes command. I was able to change the 3d lines behind his head from 2pt lines, thus able to use a gradient fill from purple to pink as the original was (as AI doesnt allow gradients on strokes).
Having watched meshes this morning, I could probably improve the purple -> blue behind the other 3d to be more like the original too

I cant seem to replace files via AAL's front-end - Mahuti - gentle reminder that I could perhaps use FTP access

Glad everyone's enjoying my art (or my tracing specifically)
Rav