As far as my knowledge goes there arent super pastels under the boa morphs....
So its just a nice pastel, pastel is only a name for an animal witch really has a recessive traight...

A recessive thraight can be many different things about a boa, for example the clean sides, the orange in the animal, the form of the sadles on the boa, and go on....

Pastel is just a name to give animals witch are less black, cleaner sides, lichter coloured, cleaner and lighter tail.... it isnt really a morph, but they work out great to clean a morph and make it even better then it was.

Over here in europe a nice pastel goes for 250 euro's thats about 300 dollars i think... Can't really say how the prices are over there....

PS
I really like this boa, if i had to choose a partner for this one i would say arabesque would be really awsome