Thanks for the feedback guys.
Yes, was also thinking in terms of fire or vanilla, but in regard to that...would fire or vanilla expression be as variable as I see it in those two? Or is the difference just due to how the patterning differs?
Here's two more photos of #5 and #6 together showing how they compare:
Unfortunately I bought both parents at near adult so no baby photos...the spider was an import so I won't be able to track her parentage but the ghost I'm busy trying to get hold of the guy who bred him out to find out what the parents were.