Very nice Bultaco, very nice indeed.
Just my 0,02€ opinion:
The tank optic looks very different to a Bultaco in my personal view, (big fan of Bultaco I have a Bul too).
If I would do the paint job I would put more Bultaco characteristics on it, like here:
With a one angled stripe with a pointy edge at the rear end, like some models have, the fenders and the tank
match more together or only just one or two logos, (plain version).
(The photoshopping is bad had not much time).