Not a great image (cropped) but liked the position and white background. 1DmkIII, Canon 500mm, manual expos.,ISO 1600, 1/1000, F 6.3. Handheld from a kayak, early cloudy morning. Had set the exposure for the egret and the white cloudy background was off scale. Used high ISO as the kayak was not a stable platform..
Who cares if this one is croped? I think that is a good high key image, very well executed and well procesed. From an artistic point of view I love the result that you got and I do not mind if this image can not be printed at billboard size ;-)