The main compositional device is one of vertical tension emphasised by placing the horizon low and using portrait format.
I thought you’d like to see the original image, so I have attached a jpeg that shows how the picture looked before the post production processing.
You can see the original is less dramatic than the final,
(Canon 6D with an EF24-105mm lens at 40mm, with polariser and lens hood, ISO 200 f8.0 1/640s)
I used Affinity Photo to improve the image. I thought you’d like to know how the transformation was done.
The original RAW image was rather dark because the camera light sensor was exposing for a bright sky. Affinity photo allowed me to make a copy of the file with an exposure setting one stop higher. This is one of the advantages of using RAW files. I saved this image and then used the High Dynamic Range (HDR) tool to merge the dark photo with the lighter one. This essentially retained the best bits of both, improving the tonal range of the image.
A final touch was a minor crop to the left and right sides of the picture removed distracting figures. The other figures were deliberately left in to provide scale and interest.
HDR is a useful tool. I tend to use it sparingly because when I look at others’ work I see the HDR treatment first, then take in the composition of the picture second.
I’m learning when to use the technique so it enhances rather than distracts from the effect I want to create.