I don't think it's necessarily a matter of record keeping to not know exactly which genes are influencing a mega-combo morph. It's that sometimes there may be so many genes that MIGHT have been inherited, the breeder can't always tell exactly which ones were.
I agree, it looks more clownish than spiderish to me. Of course, that doesn't mean it might not have both in there somewhere.But clown seems to be the overriding influence for the pattern...at least that's how it looks to me. And I would not guess any super-pastel in there, or the head would not be such a brilliant yellow. I would guess that something other than pastel is bringing out that sunshiny color.
Beyond those two comments, I refuse to speculate further on what might be going on in that beauty.![]()