1. "F2012 style kart" by "Cirno de Ice Fairy Racing" (STK account: Cirno_del_Nueve), License: CC-BY-SA 4.0

2. "Kasen Ibaraki" model from "Gensou Skydrift"

3. Kasen Ibaraki in the icon from by dairi, license: Please check their ※フリー素材に関する利用規約※ on https://www.pixiv.net/en/users/4920496/artworks?p=5

4. If any other brand mark appears here I didn't state, it belong to it's owners. 

5. Other textures (eg: words.png etc.) by "Cirno de Ice Fairy Racing" (STK account: Cirno_del_Nueve) , their license would be: CC-BY-SA 4.0 (Considering they might include Touhou content.)

6. Animated and modded by "Cirno de Ice Fairy Racing" (STK account: Cirno_del_Nueve) only for non-commercial usage.