I’m not sure if I will follow your advice 
. After all, yours is one of the best results. One thing is for sure: I must overcome the fear of using gmic and its overwhelming number of tools.
I don’t want to abuse from your good will, but it would be great if you do a tutorial, with screen shots and the like, on how you’ve processed these images. You could name it something like A Conceptual Approach to Image Development,