Do not touch the image itself, try to hold it on the edges. When a print is hand-held, hands must be clean and dry. Fat on the hands can get stuck in the picture and form spots later on. Be careful when the image is lifted it can leave a fold in the paper. Best to use cotton gloves when the picture is hand-held.
I strongly recommend to not hang prints in direct sunlight as it significantly reduces the lifespan of colour in the image. Paper images can be framed by using UV glass to protect from sunlight. Also, high temperature and humidity changes can affect the durability of the images. The canvas prints come with a film that protects them from scratches but you need to protect the picture from direct sunlight.