Very Simple Apple tvOS app

Hi, I need to build a pretty simple app for Apple's tvOS. It is basically only a gallery of browsable static images sorted into categories and couple of subcategories. Please take a look at attached mockups showing the exact positioning I am looking for. 1) Home ([login to view URL]) - shows thumbnails of main categories and thumbnails of subcategories for selected main category. 2) When subcategory is selected, a Subcategory screen is called ([login to view URL]). User browses thumbnails of images within a selected subcategory. 3) When a thumbnail image is selected, it is displayed at full screen. Browsing towards and backwards is enabled by swiping left or right on a remote. Tapping MENU brings user back to Subcategory screen, tapping MENU again brings back to Home screen. It's that easy :). I will provide all the graphic assets, so no need of any design work - only development. My UI design comes from official Apple's Human Interface Guidelines ([login to view URL]), I would like to follow this style in my app. Please feel free to ask any question you may have. Look forward to all your bids!