Personas act as stand-ins for real users and help guide decisions about functionality, design and ultimately marketing. As a design tool, they are a powerful way to communicate behaviors, goals, wants, needs, and frustrations. For our project since you will get feedback from your end-users throughout you will use real end users.
Design principles/ Usability:
Visual hierarchy refers to the arrangement or presentation of elements in a way that implies importance. In other words, visual hierarchy influences the order in which the human eye perceives what it sees. This order is created by the visual contrast between forms in a field of perception.
User feedback is information collected from users/customers about their reactions to a product, service, or website experience. Feedback and insight from customers and website visitors is used by UX designers, researchers, and marketers to improve the user experience.
There are a number of online mock-up creation sites available, the recommended one is Moqups.com