Nota bene: This is maybe silly, but in Faust's Butterfly I'm attempting to let my unseen narrator be a sort of anti-Lovecraft. My dad was a good critic of prose, and when, at 17, I persuaded him to read one of HPL's short stories--"The Colour Out of Space" maybe? he came across the expression "crystalline horror."
"What," he asked, "is this writer trying to say by this pair of incompatibles?" And I had no answer.

you ever read The Great God Pan by Arthur Machen? I heard Lovecraft really liked it, so I read it and was utterly blown away.