Pop art basically consists of two categories: Warhol and Lichstyle. In Warhol, you can have a single picture with 4 different effects or 4 pictures with 4 different effect boxes on a single canvas print. Where as, in Lichstyle, you can only have a picture of a single image printed on a canvas print. So if you want to have multiple pictures printed on a single canvas print, then you would have to go with the Warhol style. For more detailed information you can contact us at cs@canvaschamp.co.uk and get in touch with our design team to send you a proof of your pictures.