This image is part of a much larger series or sequence by artist known only as “ASD”. There are at least six additional images from the series available on the web: ( 1 2 3 4 5 6 ) Small hard-to-see thumbnails for a no longer available ASD gallery at this url (A Google cache link is here for as long as it lasts) suggest that there are at least 20 images in the complete series. The person who uploaded seven of these images to Gelbooru sourced them to a Pixiv artist whose profile is no longer on that site (user #2039710); searching one of the images on SauceNao (search results not linkable) confirms the same defunct Pixiv member number and confirms ASD as the artist. No additional information about artist ASD could be discovered.
Image provenance by Bacchus at Erosblog.