the talent of the builder is far beyond my own but definetly not my taste.
Id get a smaller tank, chop up that seat, different exhaust, get a smaller battery (if not ditch it altogether). either cut down the swingarm or extend the seat a bit.
change the paint and pickup the copper on the fork with some other copper details, im thinking rearsets and that polished piece on the swingarm. definetly could jazz up that engine a bit.