That warm glow imbuing every element in this scene is courtesy of the rising sun.
When photographing, it’s all about the light — you have to work to find it, and you can’t fake or photoshop it. In this scene, it’s permeating everything: his face, the tractor, the clouds… like dabbles of fluorescent paint.
(please click on the image to view)
↑Leica M9 and Konica Hexanon 60mm @ f/1.2.

