malymin

Obviously, in the original Miku artwork by KEI, she has Pikachu because it's the Pokemon franchise mascot, not much deeper than that; however, the more quirky inclusion, Farfetch'd, is there because it's associated with spring onions/leeks, just like Hatsune Miku is. There's some really cute details here in the matching Teto image, regarding her origins as a "fake vocaloid" and 2chan trolling scheme. As I've mentioned before, Kasane Teto is deeply intertwined with lies, mimickry, and trolling; she was born out of 2channers from the VIP board trolling the still-new Hatsune Miku fandom on 2chan by inventing a fake new bank and character for Crypton Future Media's "character vocal" product series, complete with a website and NicoNico video announcement. Her original character design, the one still used for her UTAU voicebank, deliberately mimics design elements of the CV series' characters: Hatsune Miku, Kagamine Rin and Len, and Megurine Luka.
Nohkara on Bluesky notes:

Wow the amount of symbolism. “Sudowoodo” is called ウソッキー which means “lie tree” in Japanese.
Mimikyu comes from “mimic you”.
The pokeball she’s holding is a lure ball. In Japanese trolling or baiting is called 釣り(lit. “Fishing”)

Rook on Bluesky adds:

i find it slightly funnier how sudowoodos japanese name also has the ッ for the glottal stop (?) but coincidentally that specific character becomes "tsu" when full sized, so you can totally misread "usokki" as "usotsuki" which is straight up "liar"