I am afraid 'no photoshop' (or more accurately no post production, since not all of us are well enough minted to have photoshop) is the digital equivalent of saying that the pictures must be developed at Boots.
I had my own darkroom in the good 'ole film days and I wasn't afraid to use it

For me the taking of the photograph has always been the first step in creating the picture. Not to say that sometimes I do get a picture and think 'yep, that's it', because I do. Sometimes.
For this challenge I deliberately avoided, as per the brief, all but the most basic of pp work. I used a jpg shot and didn't use any in camera enhancements.
I quite understand that there are those who are not comfortable with pp work for either aesthetic or technical reasons. Some of us use a little, some a lot.
Vive la différence I say!