I made mockups for Isabelle's alt, making 4 color swap for each costumes as per the standard like with Wario, Bayonetta, the gender swaps, ect. I focused on diversity and the source material, with half of her alts being her ouffits and the others are based the Special characters from Animal Crossing.
From left to right
1. Spring & Summer Uniform: Her default main appearance as seen in Animal Crossing and marketing.
2. Causal Clothes: Based on the ouffit that she wears at her home in HHD and RV in NLWA
3. K.K Slider: Based on her fellow musician doggo.
4.Pelican Sisters' uniform: Based on her predecessor, primarily uses Pelly's design with a dash of Phillis'.
5. Fall & Winter Uniform: Her 2nd costume, it's the clothes that she wears during the colder months.
6. New Year's Eve Tuxedo: Based on the clothes that she wears on December 31th.
7.Lottie's Happy Home Academy Uniform: Based on the character that was introduced in HHD.
8. Booker and Copper's Police Uniform: Based on her fellow doggo's uniform from the OG AC and NL.