I think he’s more a mix of blue point Siamese with Tabby and your sweet Piper is seal point with Tabby. Could be wrong...
Could be but who knows? Like I told MS.B, a friend’s cat had a litter with two kittens like Piper and there were no Siamese in her neighborhood that she knew of, and the mother wasn’t a tabby. She was colored like a Burmese. Really pretty cat.
However our two were created, they turned out quite pretty.