Interesting way of doing the headstock.
Not saying it is wrong but it would be the first time I have seen a compound angle on a multiscale.
The angle is ineresting, on a Guitar it might not end up being a problem but on a Bass with the extra string tension it could cause some problems.
Headstocks really should be on the same plane as the fingerboard to ensure an even string pull tension.
As you can see in the pic, the headstock on my multi is on the normal plane. It is simply a matter of blending the headstock in to the angled nut.