Change the image displayed on your homepage by using the option on the left. The image you choose will be resized to fill up the whole window so should ideally be landscape.

You can add additional pages to your site using the icon at the bottom. For all additional pages that you add you can choose to upload a portrait picture (which will be displayed alongside your text) or a landscape one (which will have your text overlayed on top).

All images will be automatically resized for you, landscape images will be resized to 670 pixels wide by 500 pixels high and portrait images will be resized to 500 pixels high.