Instruct: Classify an Amazon review into positive or negative sentiment.
Query: A Fan Speaks Up!

As a serious collector of photography, I have long been a fan of Eric Kroll. His vision is erotic, exotic, sometimes bizarre, always provoking. His Gwen series is an exciting followup to his previous collections like Fetish Girls and Beauty Parade, in that here he approaches photography as sequential art, a visual approach that adds context and implied storylines to the titillating images. Kroll picks up where the art of John Willie and Eric Stanton left off, adding his photographic skills and eye for beauty, mixing in sex and eroticism, tossing in a dash of over-the-edge shock-you images. Maybe this book (and its sequel Transformations of Gwen Vol. 2) are not for the timid, but it's the cutting-edge fantasy that wet dreams are made of.