Now you have to keep pushing ahead and develop a wireframe of how you think your homepage may function and how it would be roughly laid out.
Time to Sketch
Now is a great time to break out your pencil and paper and really hash out the basic arrangement of elements and functions.
Infact, here is a cool video of someone working out a LOT of pages by hand, really inspiring!
Once you get things worked out, you have a few choices about how you want to build out your own version. Of course, you can use Google Drawings, Adobe products such as Illustrator, Or you can look at my sample Moqups sketch. Moqups is an app you can add to your Google Drive account. The free option is okay to start with, and it is actually a nice little introduction to the basic skills you would need for any information architecture document creation.