You should use Pixiv Toolkit extension on Chrome to bulk download instead of saving each image manually, since these images are just Pixiv sample version, not the original res that the artist uploaded (which won't have the " _master1200" at the end of the file name)
Base +34, tedderböse +10, Vectrasx +6, nuts987 +13
I download images from Pixiv by phone through Pixiv Dowloader, because I cannot access Pixiv through Google Chrome and I'm not sure if Pixiv Toolkit works on Epic Browser. I forgot to mention That I upload them from my computer. I download only PNGs manually because Pixiv Dowloader jams on them.
Excuse me if I made any mistakes in the sentences, because English is my second language.