In order of appearance, the sources of the banner art are:
Earworm: https://toon-me-picrew.carrd.co
Osmium: https://www.artstation.com/heat3d
Seance: https://picrew.me/ja/image_maker/1414503
Ragdoll: https://www.heroforge.com/
Karma: https://picrew.me/en/image_maker/634647Â