I wondered that too but alas I've been told it's just illustrations. I was given the name of the artist -I've forgotten it-and if she's written any yaoi manga it hasn't been translated. All I could find was art when I googled the name, no actual manga. I keep hoping there's manga from this artist as I've sen her illustrations featured in the promo pages of scan groups in the beginnings of a bunch of manga and there all so beautiful and evocative. I read there's an art book all the images come from that you see used by the scantalation groups. Maybe we'll get lucky and find that she's done full mangas and a scan group has translated it. Although it looks like all she's done is the yaoi art book. It's too bad
http://www.mangago.me/read-manga/bi_no_isu/an/bi-no-isu-chapter-2.html/3/
is this a manga?