Paul Gauguin, "Self Portrait With Hat"

Paul Gauguin, Self Portrait With Hat, c.1893-94; © RMN-Grand Palais (Musée d'Orsay / Hervé Lewandowski.

It's a little hard to tell whether the altered version below is a recently painted copy of Gauguin's Self Portrait With Hat, or if it's just a highly processed photo. In either case,  it's lost a lot of detail, removed some of the more naturalistic qualities of the original, added a yellowish tone to the overall picture, and in general fails to convey the essence of the authentic painting. The photo of the painting in its frame is from a framing professional's blog, and presumably shows the work on display at the Musée d'Orsay (unconfirmed).

Altered version of a painting by Paul Gauguin.