Greetings @josepha, you've made your outstanding entry on the creative photography challenge and you have shared your creative photos. Darkness is a very strong path with is ruled out by light, both cannot be together or mixed together. The photo of the filling station at night without enough lightings the darkness will still cover the areas without light, where there's light there's no darkness.

Someone defined darkness as the absence of light and vice versa and I agree to that.

Wish you success