Please :]

@Ben CleverName if you can you can add bavkgrounds,if not then its ok

Try adding the Background template in the source editor on the pages for the images you want. For example:

{{Background |file = image.jpg}}

Thanks

@Ben CleverName can i get a help? I try but the only image i have is only the one you used,like,can you put the Images that i used on this post as a link? Thank you

You have to make sure to upload the image on the wiki, you can click the three vertical dots and select Upload New File.

Thank you