#possessed concept

Red: Boiling Isles AU - Witch Venti where he is part of the Bard Coven, but still manages to get away with messing around with Oracle magic due to Bard magic's range in spells

Orange: Vessels AU - Bodysharing au with Nameless Bard because gods need vessels to be able to walk among mortals and hide their divinity

Yellow: Possessed concept - that one concept I had about a god from Celestia possessing Venti out of nowhere and he like, keeps the outfit afterward because screw them

Green: Starfall AU - Ghost Trick AU where Venti's a dead magpie that sometimes takes his friend's form in the ghost world

Cyan: The Nameless AU - Honkai Star Rail AU where Venti is a prior Trailblazer of The Nameless on the Path of Harmony

Blue: Gathering of Cloudy Days AU - BlazBlue AU where Venti is an artificial human. Too much to explain but he's in his armor in the art instead of his regular outfit. He has a bunch of swords and keeps having to witness the timeloop

Violet: OG Cryo Archon Venti AU - Basically Venti dies and gets brought back wrong after 600 years or so in this scenario so he's just kinda in the process of crumbling like ice

Magenta: Roleswap AU - Corrupted Venti au where he is the one that's more severely poisoned and Dvalin manages to get through the Cataclysm unscathed. He is Not having a good time

You can also refer to this post for summaries for most of them