I really enjoyed this! The aesthetic is beautiful! Did you create these assets? I'l also like to know how you created (if you did) the rewinding effect. Although the tie to the theme is pretty unoriginal, it is easy to understand, and pleasing to look at.
Saying that, I would make the cube's movement a lot snappier and quicker, it felt way too slow to me. And also, when I have rewinded back to my original position, I feel like the rewinding should stop automatically.
All in all, great submission!