High/Low Key

High Key and Low Key lighting are very different but similar at the same time. They both create a lot of contrast. High key images are considered happy and show off every detail of a model or a subject. Low key on the other hand is considered very dramatic and creates a lot of atmosphere and tension. When you look at a High key picture you will notice that it's very bright and lacks shadows.
Low key's tone is darker and there will be lots of dark areas in the picture and contrast will be very noticeable.