The photo size may vary as per the way and where it is going to be displayed. One of the small sizes might be suitable for an album or for storing one's photos, and one of the larger sizes would look great in a frame or on a wall. Visuals Clipping explains that the photographer might provide a variety of sizes for customer choices in space considerations, framing preferences and uses. When creating multiple versions, the aspect ratio and resolution of the original picture should also be taken into account.