Carnelian’s “Ura-Benigyokuzui” doujinshi contain Carnelian’s illustrations of male characters. There are 3 volumes of Ura-Benigyokuzui that I know of, one of which is this one, that is in full color. You may find it somewhat confusing that “Vol. 2 full color” is a completely different doujinshi than “Vol. 2“. I’ve no idea of the reasoning behind it. If there exists a full color volume 1, I do not know anything about it. In case you’ve ever wondered, “BENIGYOKUZUI” or 紅玉髓 is the Chinese writing for “Carnelian”. The use of “Ura” in front of it denotes that is the opposite or underside of something. In this case, it refers to the illustrations being of boys rather than of girls.
This was one of my most sought after doujinshi for 3 reasons:
1. It’s Carnelian’s work.
2. It is in color.
3. It’s GUYS!
Not that I don’t love Carnelian’s gorgeous girl illustrations. It’s just that I’m a girl and I like boys. It happens, okay?
Onto the photographs!
Ura-Benigyokuzui
The cover is a shounen ai illustration of Gundam SEED characters, and is my favorite image in the book.
Inside the front cover.
The first page is monochrome. I’m guessing this is also Gundam SEED fanart.
With a ZOOM LAYER!
The cover image is so hot, it’s also the first color image in the book… and the second. Gratuitous zoom layer: ON!
Are those Jelly Bellies?!
The next page is some guys with jelly beans. It reminds me of Kyou Kara Maoh!
Cloud and Zack
If nothing else, I would have purchased this book for the opportunity to see a drawing of Cloud by Carnelian. I’ve always been a Cloud fan. I don’t particularly care either way for the Cloud x Zack pairing though. I liked him with Aerith. ;p
REBORN!
The next page is Katekyo Hitman Reborn! fanart. If you really like this one, the premier self-titled doujinshi “Chrysoprase” is full of these guys. (Chrysoprase is a doujinshi circle consisting of Carnelian and Amamiya Polan.)
BL Novel Illustration
The next page’s illustration (and character design sketches) were done for the cover of a BL novel entitled 社交界艶戯. It seems to be out of print, but you can still get it used.
Devil May Cry
Fanart for “Devil May Cry”, which I’ve never played. Hey, there’s that zoom layer again!
Messiah
Takuto from “Messiah”, looking beautiful as ever, and forlorn because his face is stuck in the book binding. Poor Takuto.
Trick or Treat
The last page is a Halloween themed sketch. I think that these are original characters.
URA-Ura-Benigyokuzui
The End!
This book was particularly difficult to photograph. I had to hold the book open with one hand and photograph it with the other. ^^; I ended up taking the photos so that you don’t see any of my hand that is holding the book open, but you also don’t see any of the page margins which have writing on them. Each page says “CARNELIAN” on it somewhere as well as an image description. At least you know what’s inside now, right?
Plastic Pleasures 
That first monochrome drawing is actually from Towards the Terra/Terra e.
WOW. I love Carnelian ^o^
PS, i Lol’d at the description of the picture of Takuto ^~^
Carnelian is very good at drawing guys. I’m happy to say she has been drawing male characters a lot more often the past year or two. She seems to be particularly fond of both Star Driver and currently Uta no Prince-sama, so perhaps there will be more Ura-benigyokuzui books in the future!