I'm glad you found it relaxing, I had games like Proteus and Abzu in mind when I started. I also wanted to add a stronger link to the comic but I wasn't sure how given the time limit. Maybe in a future update.
The game was always supposed to be a bit barren but it wasn't supposed to be this barren, I just ran out of time. I want to add some more stuff to fly around as well as some stuff in the distance (treeline, clouds, mountains?) and some small stuff on the ground (leaves, grass?) to make the world seem more lived in. I'm working on obstacle detection and a restart button is definitely going in the next version.
It's also on my to-do list to add some simple onscreen hints at the start of the game. I'll probably do that when I add some more control methods.
Thanks for playing!