>>2595600Manga is the biggest pain in the ass because of the halftones they use to shade/color, especially if its not a really raw, clean, sharp scan. In the past I've only managed to make it look right when the shading required is already pretty sharp and I can find a large sample of the fuzzy scanned halftone texture someone else in the manga.
Anyone feel free to prove my skepticism wrong and make it work, but I won't hold my breath.