If it seems like the sets are out of order, they're not: the artist sometimes will go back and redo some of the sets with lactation and/or pregnant variations. If there are any duplicates, please let me know.
Thanks for sharing, but please use a lossless image optimizer like pingo https://elii.cc/dksmu or oxipng https://ouo.io/ILcO4J with this artist, his images are bloated as fuck, the images in this gallery optimized would be less than 1GB in total size.