Congratulations! Please let me know if there is anything I can do to help you. I highly recommend Marvelapp.com It is a great prototyping tool, and free for three projects. Super easy to use and you end up with a link you can send.
I know, my poor Mom once started crying when she saw her picture, she didn't know how old she was. However, in the early stages, this would be amazing. It reminds me of a short visualization technique. Lots of luck in the refinement round!