It's a Zelda/Pokémon crossover drawing by gentleghosts. I assume it's an original design.
https://www.reddit.com/r/zelda/comments/10xfmg1/ootoc_youngster_link_and_eponyta_want_to_fight/
I think it's Anjali from Dungeon Siege III in her Archon form (https://dungeonsiege.fandom.com/wiki/Anjali)
Full image: https://x.com/Obsidian/status/951171255964549121/photo/1
Yep, that's Plutia from Hyperdimension Neptunia. I'm pretty sure that's official art. At any rate, Miky has already taken care of providing a source. ^^
That's Yayo, from Puchimas! Petit Idolmaster. :)
It looks like that's an anime screencap. There's a Nicovideo upload of this bit, specifically. https://www.nicovideo.jp/watch/sm18958807
I ask you to please read the [url=https://www.animecharactersdatabase.com/books.php?id=70]Who Board rules[/url]:
"Please do not request multiple, [b]different[/b] characters/images/links in the same post - make a different post for each different request."
Users may reply to you out of kindness but that should not be expected nor demanded.
This is art by Hideyuki Morioka.
If you're familiar with the Booru imageboard sites, Gelbooru has it: https://gelbooru.com/index.php?page=post&s=view&id=2966677
Danbooru is down for the time being so that's the only one I can provide.
JoyReactor has it has well and they let you link directly to the image, which works for us: https://img10.reactor.cc/pics/post/full/Araragi-Koyomi-Monogatari-%28Series%29-Anime-Kissshot-Acerolaorion-Heartunderblade-4957427.png
I cannot tell where this comes from. It looks like it's promotional art - this shot is certainly not to be found in the anime for instance. Fullest version I could find is here: https://wall.alphacoders.com/big.php?i=256768
It's in this MyAnimeList article too, but compared to the first link some of the background is cropped out to focus on the characters. https://myanimelist.net/featured/981/Significance_of_the_Piano_and_Music_Overall_in_Angel_Beats
That's Krul Tepes. The image is AI generated. I have been able to find some [url=https://www.pixiv.net/en/artworks/151215890]similar[/url] but none that actually match this generation.
That's Miku! And that's one of the loading screens from the game, "Hatsune Miku: Project DIVA F 2nd".
Here's a good res version of it. https://www.hxchector.com/wp-content/uploads/2014/04/hatsune_miku_project_diva_f_2nd_load_screen100.jpg
That's Ceres Fauna, a vtuber for Hololive.
And since that's a screenshot from one of her streams, finding the original of this specific image would be quite tough.
Real source is https://x.com/ponfu_y/status/1720280720466481207
But, since it's hidden, this mirror upload will have to do.
https://gelbooru.com/index.php?page=post&s=view&id=9190191
No Danbooru link this time because I'm wary of going there with the IP logger incident, sorry Miky.