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Haha that's cool to hear! I'm curious which one made you think?

Shapes. I knew to look for shapes etc in the main subject and supporting elements, but what caught my eye was the inverted symmetry. Specifically in the shot with the mountain and waterfall where the V shape of the peak is reflected in the water path. I'd never though to look at how the shape mimics eachother.

Yeah those are fun to incorporate. I picked it up by spending too much time looking at Marc Adamus' images haha