pls check the comments to see who owns the theme although here is the timestamps
Venti - Bard's Adventure: 0:00
Klee - Let's go, Crimson Knight!: 1:32
Eula - Dance of Aphros: 3:04
Albedo - Comtemplation in Snow: 4:48
Tartaglia/Childe - Letter from Ajax: 7:03
Keqing - Nimble as Lightning: 8:47
Xiao - Path of Yaksha: 9:45
Ganyu - Qilin's Prance: 11:19
Zhongli - Rex Incognito: 13:14

all character themes from the 2021 genshin concert

The Stellar Moments Vol. 3

This track belongs to HOYO-MiX and Yu-Peng Chen

photo/game by: Genshin Impact

Serene and Fathomless - Kamisato Ayato OST Theme Genshin Impact

Winding Through Avidya - Tighnari OST Theme Genshin Impact

As Light Rain Falls Without Reason | Genshin Impact 4.0 Trailer OST

I do not own anything of this. 
I simply save ppl that are searching for this sm (⁠ ⁠ꈍ⁠ᴗ⁠ꈍ⁠) 
All the credits go to Genshin Impact's music staff.

As for the cover picture the credits goes to waternaeng on twitter :)

Opera Epiclese (Inside The Theater) - Fontaine Genshin Impact OST

Genshin Impact - Fontaine Soundtrack "Opera Epiclese Theme" (Version 2)

To the Stars Shining in the Depths | Genshin Impact 4.1 Trailer OST

[No Dialogue] Furina Story Teaser: "La Vaguelette" | Genshin Impact

Johnny Silverhand TOTALLY has a crush on me.wav

Dark, hypnotic deep and minimal techno infused with Armenian Duduk and Violine, cinematic ambient textures, warm sub-bass, and flowing synth arpeggios, evoking the depth and warmth of fine Armenian brandy.

all character themes from the 2021 genshin concert

Anqa