Rene Daalder was a Dutch director best known for his film Massacre at Central High (1976), marginally interesting because of its echoes of Lord of the Flies (kids are cruel). Not very good but interesting enough.
But please judge for yourself.
Larry Cohen was an American film director and screenwriter.
He is best known as a B-movie auteur of horror and science-fiction films such as It’s Alive (1974), God Told Me To(1976), Q (1982), Special Effects (1984) and The Stuff (1985), which were full of satirical social commentary.
Later in his career, he concentrated mainly on screenwriting, most successfully with the very cleverPhone Booth (2002).
To the not so illustrious history of Spanish erotica, he contributed the film La trastienda, the first Spanish film to feature full frontal nudity. The film touches upon sexual repression and Opus Dei.
María José Cantudo was the actress who was first seen nude on Spanish cinema screens in La trastienda. While researching Grau, it also came to my attention that Cantudo recorded a song called “Desnuda me”, Spanish for “Unrobe me”.
In the part on Spanish horror of the documentary Eurotika!, Jorge Grau is featured on 18:50 [above].
Today, the full movies of these stills are available on YouTube:
From Castle of Blood I was able to find the exact location of the film still in question. The woman who is wearing the translucent crinoline and who bares her perky breasts appears to be Sylvia Sorrente (Elsi in the film).