i'm not aware of an actual organized dataset, but you could start hitting up e-hentai.org and with the right searches (look for decensored or english, and then

i'm not aware of an actual organized dataset, but you could start hitting up e-hentai.org and with the right searches (look for decensored or english, and then find the matching original japanese versions on there), you could get together hundreds or thousands of images in an evening.