Front page

Love the theme, however when I installed it - instead of the homepage showing as per the demo - Header image with 3 large images below it. It has a module with 3 small images and text under it. I want the same look as this - https://catchthemes.com/demo/fotografie/ What I end up by default is this - www.bagtech.in I know its a very basic question, its my first time using wordpress. Thanks.