Images play a huge role in a web design as compared to others. Using images in header alone or whole portion of the page can style the whole site and its appearance. Setting a large background image will set a tone for the whole site, or they can appear in the form of thumbnails in a grid. Great care and thought should be put into composition, layout, and style. And size should also be considered while putting a big background image as it will ruin the speed of the website loading.
Quality of image should also be considered along with size, that is why most sites go with textured backgrounds which are tileable rather than whole images. Anyways its your choice, in this article we have compiled a collection of sites that are great examples of how images should be used in web design.