The vocabulary word which was least familiar to me was high key contrast. A high key contrast image consists of mostly light tones. The image I’ve selected to represent high key contrast comes from the 2013 World Press website. The picture depicts two young men holding the American flag. The flag he being held upside down, representing their dismay. Additionally the bottom of the flag is frayed which is unusual to see. Displaying a damaged flag is not done traditionally. This may have been done intentionally in order to speak to some of the concerns of those who are represented by this photograph.
If you cropped this photo to just the sky, it would be high key-meaning all the tones are lighter than the mid tone.