Just to confirm, one parent was a black pastel superstripe, not a blackpastel specter/or/yellowbelly? If it is, these should all three have at least CG specter/or/yellowbelly and the only thing needing an ID is whether or not they have black pastel, yes?

Pattern wise they all look like they could have black pastel. I'm honestly not sure color wise how black pastel and coral glow interact.

You cannot tell specter and yb apart unless it's a super form.