One quiet evening he walked around and tried to determine what made all those photos so special that they had made it to the exhibition against a lot of hard competition. He concluded that it was the LIGHT which did it. The *light* was an essential factor, amidst all the great variety of subjects and style.
I guess it's not for nothing that photography means Drawing With Light.
(Click for big pic, please. Photos by TCGirl. These made me think of the importance of the light. Olympus E-M1, Panasonic 14-140mm. And these are unprocessed, that good are modern cameras and photographers.)
As an aid to spot the bird in the highest branch, which indeed was very tiny in the frame: