>100MB for 20 pages is fine. I disagree. Ultra high res scans sound nice in theory (and will be nice in practice in a decade or so when we all have tablets with 8k screens and terabytes of storage to read them on) but until then they're unnecessarily big, take unnecessarily long to load and have a tendency to show heavy issues with moiré when they're downsampled on the fly for some FHD screen with the least computationally expensive algorithm your average image viewer has available. The last part especially is easy to avoid with lower res images that were downsampled from high res scans using better algorithms like gimp's lo-halo which works exceptionally well with screentones. Sure, technological advancements will render these arguments moot before long, but even then I consider an image height between ~2k-3k pixels a great quality/filesize compromise which will, at minimum, never look bad.
I love Toma's art of this pairing. So adorable and well drawn. Thanks so much for scanning and sharing this one! I was really hoping it would be shared here.