I find that extreme composites with cool looking conceptual finish are great but extreme editing such as removing face features entirely, removing wrinkles completely or softening skin like it would be about some aliens in a fine art kind of project when in fact is about a portrait session are by far the most common "gone to far" kind of editing out there.
More about this you can find on my website at the Retouching & Editing page.
Hope the Gifs work. Enjoy !
Retouching Editing Restoring & Digital Enhancement by Claudia Veja Images