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A detailed discussion of the top bar and the 3 pages follows.
Top Bar
The top bar provides consistency of look and feel across all of ShutterConnect's pages, while also increasing efficiency of navigating back to the homepage. The top bar also allows users to log in or log out in one click.
When designing, we considered using a tab bar with different tasks, such as "find a photographer" and "leave a review". However, we decided to show only the tasks that were applicable to the particular page that a user was viewing. For example, having a "leave a review" tab at the top of the search results page might be confusing to a user. We therefore decided to appeal to the simplicity heuristic.