How did I get this KittyCat???

[Bea Shamrock]

Adding to what Nenya said, your kitten can't hide Plush tail, as it's dominant to Frisky, which kitten shows. So his/her hidden tail has to be Frisky or more recessive. Even the whiskers can be mysterious or more recessive, since the mysterious isn't showing and
so we don't know what mum actually passed. It's only a possibility, and I haven't seen the rest of mum's pedigree, but if you get OS from your snowshoe red with a different whisker shape, you can look back in both parents pedigrees and work out where it can have come from.

Also, if you like tracing back traits, you can use the IDs from any kitty to see further back if the current owner has a pedigree linker like the ones made by Liriel Garnet (they look like picture frames, genie lamps or kitty clocks).