Lighting makes every picture different. Split makes a picture more dramatic in my opinion because half of the persons face is half light and half shadow. Rembrandt is half the face lit up and creates a little triangle of light on the other light. Broad is the whole face lit up; short is when the face is lit to the side and is furthest from the light. Loop is a little edge of shadow coming off from the nose. Unfortunately, I do not have short or loop portraits.