Well, I didn't make something like that before. Maybe only small collages with 4-9 arts. I have plans to try with YRYR, because I have some cropped manga.

About automatic tool, I used ImageMagick to find pictures with required ratio (for 4:3 it's >1.33 but <1.34) and create big picture using found (resized to 400x300) pictures.

3 commands for 4:3 picture:

# find and create symlinks
find . -maxdepth 1 -exec identify -format '%w %h %i\n' '{}' \; | awk '$1/$2>1.33 && $1/$2<1.34 {print $3}' | while IFS= read -r file; do ln -s "$(realpath "$file")" "/home/ymi/Pictures/collage/4-3"; done

cd 4-3

# montage big picture
find . -maxdepth 1 \( -iname "*.jpg" -o -iname "*.png" \) | montage @- -geometry 400x300+3+3 -tile x collage.jpg

Have you done this before?

I remember ages ago seeing pictures composed of many other pictures. I believe it was done with an automatic tool, if that interests you i could try finding it?

Haha, I thought she is Akari too, but she is just a girl whom Chino-chan helped to find a way in town (she also showed her some nice places)

Wow, that must have taken a lot of time!

In the right bottom quadrant of the first one there is a coloured page with a girl next to Chino-chan who REALLY looks like Akari-chan?

My other favorite panels:

• "They're fake but you can try touching them if you like..."
• "They're way too overdressed!"
• "I love mocha-onee-chan"
• Mocha + cocoa + chino cuddle picture
• "She's using Tippy as a pillow again"
• "Chino-chan you're really comfy you know"
• "When you come to yourself you'll probably feel like dying from shame"
• "turn"
• Rize feeding Cocoa and Cocoa feeding chino

That is interesting because Cocoa is usually quite smart emotionally I think. With her it is hard to tell sometimes whether she understands but is playing along or whether she is being a dummy. People argue whether she knew Roze was just Rize from the start.

When Chino-chan was angry in the first season she knew immediately.

That's funny but Cocoa still doesn't really understand when Chino is angry (last volume), haha

Rize-chan is a good onee-chan. When Chino-chan was angry in the first season she knew immediately. I also like Chiya's and Syaro's hair in the last panel.

nice mouse |ol. Tippy would be nice pokemon

Pokemondb says that he is a mouse lol

Cocoa-chan failed the onee-san vibe check again 💀.

She sometimes is like Akaza Akari with her funny fails

Cocoa-chan failed the onee-san vibe check again 💀. Luckily I have no dating apps otherwise I would have just updated it to "looking for a women with a sense of fragile beauty and a bit of melancholy". Megu-chan knows how to put words to things. I don't really post much on Danbooru but sometimes I do some tagging.

I haven't seen this on MangaDex, but it looks like an illustration for one of the newest chapters. Koi's arts are becoming more and and more crazy beautiful with each volume ❤️

I've been hasitating myself for so long posting these cover arts on Danbooru, because they are "hard-translated scans", but since Mangatimekirara's twitter posts them digitally, so I finally gonna do it! (though scans quality looks better than twitter images... )

Scan:

Same art but on Twitter