Art by oweno found on https://www.pixiv.net/en/users/73637354/artworks
Was posted between "October 2, 2021" and "April 22, 2022".

Downloaded using a plugin by らんだむ called "Px Downloader":
https://addons.mozilla.org/en-US/firefox/addon/px-downloader/
Here are my single/multiple/novel filename naming scheme settings, which I prefer over the default since it puts the id first (ensures chronological order) and it doesn't create subfolders for multiple images:
PxDownloader/${userName} (${userId})/(${id}) ${title}
PxDownloader/${userName} (${userId})/(${id}) ${title} ${page2}
PxDownloader/${userName} (${userId})/(${id}) ${title}

I skipped https://www.pixiv.net/en/artworks/94395012 because it is just a 1 frame still-image preview of five animations. They had the same resolutions as the animations, which are in the gallery, so nothing is missed out on.

The Ugoira animations were made into .gif using the 90% setting of the Px Downloader plugin. I tried making one as an animated .png but it just made the file 3 times larger with almost no quality improvement, downloading it in lossless .zip revealed that the artist uploaded the animation as jpg which looked to be extracted from a gif in the first place (due to the dithering) so these .gif images are basically the same quality as what you see while browsing Pixiv. But I really wish e-hentai would put in the effort of supporting webm and/or webp...

Felt compelled to make this gallery since the art is uncensored, meaning Pixiv will delete them eventually or force him to reupload censored versions.