Yellow mask-
The nine points closest to the hole in the mask represent kurama’s nine tails
This one kinda makes sense since it was the mask he wore when attacking the leaf village
Orange mask-
The orange mask (obviously) represents the zetsu with the spiral pattern that obito met after he was saved by madara
White mask-
The pattern on his white mask is either a combination of a rinnegan and a sharingan which are the eyes he had while wearing it. Or maybe it symbolizes his eye of the moon plan
I don’t know how much of this or if if any of this is correct because I got most of it from a google search but I thought it’d be nice to share on here