What is the rationale of the long hair? He had shaggy hair when young, then became bald and stayed that way until he became a 'ghost.' So is The Force determining what the length of his hair would be when he's dead, or did Anakin choose his hairstyle when he entered the afterlife? ("I'd like it straight and parted to the side, please.") ;) The mock-ups are fun, but I don't see any problem in leaving Shaw exactly as he is in that scene.

We don't want him looking like James May, do we? (but if someone wants to try, go for it!)