I would definitely recommend baby wipes for cats. They do not clean off the oils the cats need. Honestly, bathing a cat every time she eats seafood? Stop feeding the seafood. LOL. Before you know it, you'll be wanting to brush her teeth as well (which can be done with the proper toothpaste for pets and brush).
Happy to hear things are progressing well, but I still think it's too much too soon, but Snickers is your kitty. She's still very young. Getting her used to a harness is a good thing and she will enjoy and INSIST on walks, so get prepared for all the yowling that goes on. You do know that you do not train a cat. They train you!!
Tricks? Tricks are for your amusement only (or you post neat videos for us to see). Maybe Snickers can compete with Mystic to see who can learn the most tricks.
I know you are over the moon and the progress she has made. Things can vastly change in a week's time as you know.