Note: This is from 2021 before the Klonoa remakes happened.

Rat God is from Mad Rat Dead (Game)

Snailien is from Snail's House/Ujico* (Music Artist)

Popka is from Klonoa 2: LunaTea's Veil (Game)

Rabbit is from Skunk Fu (Cartoon)

Maggie is from Timber (Animated short)

Hannah is from Neopets (Website)