It may just be that enough different genes stacked up to cause it to get eyes like that. While CG don't normally have that when on it's own, maybe the combo of enchi, CG, pastel, and champagne does? Unfortunately I've only been able to find a single picture of that combo and it's not good enough lighting to tell what color the eyes are.

If this fella turned out CG male https://www.morphmarket.com/us/c/rep...pythons/602761 that really makes me wonder what on earth is going on with the sire. Has the males he has produced before been CG or non-CG? Seriously, weirdest sire ever with odds and craziness