I personally think parchment, aged white or even aged white pearloid would look great (if you’re wanting to keep it in the white/cream pallet of colors.
My personal choice would be to put a tortoiseshell pickguard on it, but that’s just me.
Beautiful guitar! Congratulations!
MOP or Tort!
eBay/Amazon have pickguard sellers in the $12 range for more colors than you can imagine. Order two or three and change them out from time to time.
Other option is hardware store contact shelf paper put down and trimmed with a razor blade. I've seen some rattle can spray pickguards.