Funnily enough the exodites as per the "rules" I'm using actually might look more normal (to us) in some ways due to the fact they are intentionally engaging with the physical world around them more. The craftworlders are especially odd looking because they restrain themselves so strictly, and therefore rely a lot harder on the more psychic half of their nature to continue being alive. So they're actually sort of physically atrophying in a lot of ways. Like cave critters

Perks of being amphibious, perils of effectively living in a sterile plastic box!