No idea why this gallery turned out so large.

@Reikendar

Easy explanation. You saved the BW images in RGB mode with 32bit colordepth instead of greyscale with 8 bit colodepth. From the one test image I downloaded I estimate by converting the BW images to greyscale the total size could probably reduced by something around 40%.

Base +21, Raslac -7, devildonger +6, Fireboy2009 +14, daitengu +9, Shy-Anon +6, ShaoNar +6, Reikendar +6, Akrioz +6, electrocardia +9, 24j8fe3ch5 +5, TIE_Defender2nd +10, Tarball +13, and 1 more...

Was there some upscaling or something done? The image quality is pretty bad.

Base +8

Isnt the chapters licensed?

Base +7, Zerfat -10, ikasan111 -6, tsuyoi_baka35 -6

I guess you won't stop trying to deceive people with your bloated, blurry and artifacted upscales of x1280 resamples. Off to the blacklist.

Base +15, demon767 +6, kafi +17, izumabakumatsu +12, MurphysLaw +7, XNumbers -8, lordkuk -13

Yeah your gallery size is dumb. Use Oxipng to fix it. It will losslessly optimize the pngs. Word of caution, remove all square brackets in the folder paths when running it though.
But your image resolution is also needless high. Normally you'd have it the same as the raw. Which is only x1500 for digital version!

Base +10

These were pretty wholesome stories.

Base +2, Tarball +13, Refyrsen +12, Miyepi +1