Pixiv: https://www.pixiv.net/member_illust.php?mode=medium&illust_id=72041810
Twitter: https://twitter.com/namename_saito/status/1069217419728629760

Full name of the artist is supposed to be "Namename saito", but it's also shown as "Name" in his pixiv.
All images in this gallery were resampled much higher in its quality compared to originals.

And it might sound so weird, but this is not a sample of a specific work, since this is just all of images of the work what artist "Name" drew under the title same as this gallery's.