1. Users
   1. Admin
      1. Manage users
      2. Manage permissions
      3. Manage roles
   2. Artist
2. Admin site
   1. Artist site 1
   2. Artist site 2
   3. ...
3. Features
   1. Skins
   2. Asset
      1. Full size image
      2. Thumb
      3. Preview
      4. Title
      5. Description
      6. Tags
   3. Sections
      1. Section 1
         1. Section 1.1
      2. Section 2
      3. ...
   4. Shopping cart
      1. Search by artist, title, description, tag
      2. Manage cart
      3. Checkout
         1. Google checkout
         2. Paypal
         3. ...