Kindly send us your site admin URL and admin login details to start working on it. I have found the URL and login details in the chat seems the URL is not correct when I try to access the URL you provided i get nothing. kindly double-check and give us the right login details.
Please do take some time to read through some of these links:
We create a custom module, we insert a background image, how to expand this image to 100% wide of the web page. We can not place the image in module and write over text, to show upper image as your demo.