Huke's Comiket 77 release was Black Rock Shooter Visual Works 2, and similar to the first volume, its content consists of the characters that make up the BRS world. There is a great focus on the villains in this volume, and impressively, none of the Black Rock Shooter illustrations that appeared in Huke's PICSIX are in this book, so there is no overlap.
I was really hesitant about purchasing Itoh Ben's Comiket 77 release titled CROQUIS, because with a title like that, short of a complete misunderstanding from the author, it would mean sketches. But then as I looked around at auctions, it was listed as full color. So, here's what I now know about this doujinshi.