YES! The WK mnemonics are just brilliant. It’s what inspired me to want to draw them all.
(They’re here if you’re curious: WK Mnemonic "Art" for Kanji Levels 1-7 (Radical Levels 1-10))
Mrs. Chou’s and Koichi’s appearances have always struck me as hilarious. WaniKani is its own little world with its own little characters.