Pickman's Model

Pickman's Model is a short story by H. P.. Lovecraft, written in September 1926 and first published in the October 1927 issue of Weird Tales.

The story revolves around a Bostonian painter named Richard Upton Pickman who creates horrifying images. His works are brilliantly executed, but so graphic that they result in his membership in the Boston Art Club being revoked and himself shunned by his fellow artists. (Goodreads)