Since all 4 of the genes at play are once-dominant, they can be independently passed on to offspring with 50% probability per egg. If pastel and cinnamon were both a part of this pairing, you could expect a cinnamon pastel outcome. That would be called a pewter, and if black pastel had been present instead of cinnamon, then a black pewter. A parent snake can pass of all, some, or none of it's morphs/ genes, and they don't have to go as a package deal. One caveat is if you had a -maker banana, then you could reasonably expect each offspring to most likely be a certain sex in the presence or absence of the banana gene.