I had a sudden inspiration to create some critters from mythology. I intended to start with a faun/satyr, but I couldn't find a photo of a goat's hind legs in the right pose, so I went for a centaur instead. Source photos from Pexel.
Source images ...
And the layers ...
For the horse's right shoulder I copied the horse layer and flipped it -- that's the turned-off layer -- and used the clone stamp to copy the rump. I made a rectangle with the chestnut colour of the horse and a gradient of 100% to zero to make the colour change between the horse and the man look seamless and more natural. I blurred and dulled down the background image to make the centaur stand out better.
And now I suppose I'm just going to have to go out and take my own photograph of a goat standing on its back legs!