Creating pages is really easy all you have to do is go to site and then pages and then click add page. My recommendation is to use the classic block because it has all the features you need. From that block you can add images and hyperlinks very easily. To add images you just have to click the button which has a symbol of a camera and a music note. To add a hyperlink you have to click the chain symbol{ the first one} and add the link you want to.