The images on your homepage are set by applying a tag to the image/s you'd like to appear. The tag to apply is "home". This can be done in the edit asset window in studio. If you'd like to remove an image from the homepage, this can be done in the same edit asset window by removing the home tag. To locate the images tagged home, you can enter home in the search field in studio and click search by tag. It is important to note, in order for an image to show on the home page it needs to be set as published and contained in an album.