The automatic exposure capability of modern cameras is a thing to be cherished. It usually produces excellent photos with nothing more than point-and-shoot. There are occasions, however, when it is best to override the automation to force a lower exposure. The built-in exposure automation assumes that the scene is reflecting 18% of the light falling upon it, and that nothing in the scene varies too much from the 18% average. There is trouble when one of those assumptions is wrong.
The effects of light on a subject depends upon the the positions of the subject, the camera, and the light source. I am fond of strong back lighting, which depends upon getting subject, camera, and light source carefully aligned. Set up correctly, back lighting has the potential of giving subjects the drama they deserve. Subjects like scrambled eggs or sorbet, for example. With a lightweight pocket camera and a small subject, the camera can be held in one hand and the subject in the other to very quickly get the lighting aligned.
… these photos are straight point-and-shoot images taken with a pocket camera. … I didn’t adjust the lighting in Photoshop. The trick, insofar as there is a trick, is to not to be afraid of shooting into the light.