Before
The original landing page was not visually appealing and doesn't provide much information for the first time user.
Final design:
I designed the illustration to indicate the app's purpose and how it works.
The initial layout: video overview on the right, detailed analysis on the left. The users recognized the purpose is to keep track of the progress of other videos while inspecting object detections; however, they preferred to have more screen real estate for annotating detections.
Final design:
Based on the feedback, I changed the video overview in thumbnail fashion. Click on a video to get to the detailed analysis view.