I just respond to what stimulates me visually. There is no cognitive aspect to my work. Sometimes I see multiple moving parts with a blank that needs to be filled in. I wait. Sometimes it happens, sometimes it doesn't. That's the nature of the beast.There is an interesting detail about this photograph: The viewer has to figure out by analyzing the shadows that the pole has two signs at the top. I haven't determined whether that's a strength or weakness of the photo, but you'll never hear me arguing strongly against anything in a photo that makes me stop and think, which this characteristic definitely did.
Question for Gary: Was that apparent difference between the pole and its shadow your intention before you released the shutter?