Not sure if this belongs here, but I'm curious if the 2 bitch driver doujins (Bitch Divers 2.0 サンプル and 「Bitch Divers YUI 」サンプル) are actual full books?

Found them on pixiv and the artist has a website here http://alternativecomics.blog43.fc2.com/

For the life of me I cannot actually find any other info on them. Are they just a few one shots the artist did that are prettied up to look like a full book?

Sorry if this post seemed pushy, just really perplexed by the whole thing. Be a shame if all that talent was not fully put to use