When he answered that the eyes of his pup is pinkish or purplish, he let me know that “All of the purples in this palette are pinkish purple”. So any purple eyes can fall in this category.
And, also -
“Not to pop open the pool or anything but I see the same group of like five pups listed for a bunch of different people
And then the others aren't being looked at”
Something for us to all think about. I have seen in the past that his pup stage always has some design that the adult will have, but the adult is much more elaborate, and also, his pup tends to keep these elaborated details close to its chest, meaning not too much of what is to come is revealed in the pup stage. Fun, fun! Oh, and there is still one hint that hasn’t been discovered still.
Also, @Avianahelena you are making some great observations and guesses! Definitely right about the snake.
@kiro I’m looking forward to hearing your guesses!
EDIT:
Just confirmed by Koikee - I found 2 hints last night in Oekaki - these 2 drawings, and their titles

Titled: ???
and

Titled: aaa???
Makes me think of this pup @koikee
