Grad tutorial 10

Some more responses are collected in the next day.

The promotion video for communication was shoot on day 3 (July 3rd).

Check out the video from here (Eng version and Kr version): https://drive.google.com/drive/folders/14BySF38CMlQyXFDi3P6btZsAJ7WYYDmt

The UI design:

Layout of quiz pages were fixed to in to card grids to have more consistent space at the bottom of each page.

The music video example illustration part was fixed to align the title and the exit button, having menu to play other songs, and a bit of shadow was added to the title.