I haven't seen it before. The rest just came to me while I was working on it. What you make out of it is what counts. Nope, it's not. The reason is that the idea for a graphic can be borrowed but not the graphic itself.
Many people like to see the same images on every other homepage.
Because it doesn't set the website apart from the gray mass. Well, I don't have the money to buy expensive graphic software. You might call it crazy, I call it wise. The browser compatibility as well as the loading time always depend on your target audience. We don't know your target audience.