SatoruToru

Akashic Records of Bastard Magic Instructor – i remember something big started to happening at the end of season, so i wish there was a second season. Also can mention: The Ones Within.

Searched a little, and find this guy on DeviantArt, i think it's the author of the art. And here the art as well

Maybe someone will be interested in source, so i leave it here:

Name: Let This Grieving Soul Retire

Romaji: Nageki no Bourei wa Intai Shitai

Anilist

Anilist has option to import MAL lists, so it shodn't be a problem. I personaly moved from MAL to Anilist awile ago and used this option

I tried to search, seems that it's just a single art.

Here the source: Pixiv

Well, i make a screenshot (i always pick a frame that, i think, might be a thumbnail) and search trough image searching services

Maybe someone need an author, so i leave source here:

Author: Tumblr Instagram

Orig. post: Tumblr

Here you go: Twitter Pixiv

I also don't see the issues

https://codeberg.org/SafeTwitch/safetwitch

Look at the background