sayuu_hanten vs 慧

We have an artist called sayuu_hanten (沙幽飯店), but as I was browsing his FC2 blog and pics, it seems that at least for a part of them the actual author is 慧, but not all of them have the signature. By casual browsing I wasn't able to determine if 沙幽飯店 is a circle and whether it has any more members. Does anyone know more, or have a link to a profile or something that would tell more than the profile sidebar on FC2? And how do we record 慧? Possible readings include Akira and Satoshi and a couple of others.

According to toranoana 沙幽飯店 is the circle name and 慧 is the author:

http://www.toranoana.jp/mailorder/article/04/0010/13/91/040010139126.html

It should be noted that some of the images on his/her site are collaborations, such as this one:

http://sayuuhanten.blog116.fc2.com/blog-entry-150.html

I added 'chink' to post #180374 since she already has an entry here and also a 'collaboration' tag. The other two weren't noteworthy enough for inclusion, judging by their work. Feel free to add them if you disagree.

As far as the reading goes... no idea.