There are to many answers to the question.
It is all personal taste, with a $1000.00 budget.

That could get you another single gene female AND a single gene male OR a really nice two gene male

BHB has a couple really nice adult singles that would go nice with a pastel...........pin or spider het OG for less than half of what you are looking to spend.

Its all up to what you are wanting to make, I just used BHB because I happened to be looking at a couple snakes there right now.