Create a homepage background photo

I'm creating a weebly site and needing a customized home page. Ideally, I would send you photos of my employees and you use it to create the background. My vision is the left half of the page have photos (25 or so) and three of the "frames" have words instead of pictures. When someone mouses over or clicks (mobile) on those words, they would expand with a definition to the right side of the page.