I took this picture back when I lived in California and there was a bad wildfire nearby, causing the sky and sunset to be a very deep orange color. The photo was taken from a nearby tree I had climbed and The light source is the sun which, in this case, is facing towards me. I found this photo interesting because it makes the appearance of the leaves and branches all essentially completely dark, as there is no light that is hitting them since the light source is completely opposite from them. The backlighting really highlights the shapes of the objects of which it is outlining, which I really liked.