Looking forward to seeing what you all come up with! Feel free to shoot me a tree-mail if you run into trouble. I'd be glad to try to talk you through any steps that are unclear. You know how something can make perfect sense to YOU, when you write it, because you already know what you're trying to say. Sometimes it isn't as clear to someone else trying to read it and follow the instructions. I recently had that problem trying to follow a recipe from someone for whom English wasn't the native language. I couldn't figure out how on earth I was supposed to marinate chicken in baking soda. LOL
Just dive in and do it! You'll find it isn't as hard as you think, and after you do a few, you really develop an eye for what pictures will make a good banner, and which don't.