What exactly tutorials are there on making Surrealist Photos in Gimp?

[SleipnirTheHorse]

The photo in the attachment is a resized version of a photo I made in SnapSeed a primitive Google program (and you won't believe what I had to go through to resize it!)

Here are some artist I'd like to imitate. 

Man Ray
https://www.wikiart.org/en/man-ray

Claude Cahun
https://www.wikiart.org/en/claude-cahun

Kansuke Yamamoto 
https://www.wikiart.org/en/kansuke-yamamoto