I think that looks really good on him. With a little less contrast and a bit more of the background being visible - it'll be perfect :)
I still think that his hairstyle should be similar to Luke's in EPIV - but not as long as that (more cropped). He's only about 44 or 45 and in that galaxy far, far away, receding hairlines start at a later stage (Obi-Wan is an exception though, lol).