Make sure it tells your reader the essence of what your business or organization is about. Next write an outline of the major topics you want to address. These are any and all words that a person might use to do a search when looking for the types of services or products you provide. I will add to your list to fill in any gaps I see, but you should come up with the initial list as you know your business best. If you have a logo, provide a very clear, crisp copy of it.
Original artwork scans the best.
I will return it to you. Select your photographs. Regular color prints are fine. Make sure your photographs are sharply focused , have good contrast, and are well composed. The average computer monitor is a low-resolution device compared to hard copy.