I can tell a lot of love went into this game. The graphics are beautiful, and the presentation is A+. But there were a few issues and points of confusion I ran into while playing, though I really like it overall.
I pressed Escape to pause, and was unable to resume.
The "E" text on the right side at the start of the game, my brain did not parse as an "E" at all. In fact, it wasn't until I saw "L-Shift" that I realized I was staring at text. I see that it's consistent with your title text, which looks great, but I would consider showing something other than 1 letter for the early stuff. Maybe "Press E."
In a similar vein, I think the game is perhaps a little too hands-off (for my taste) with the lack of UI and information, though I certainly appreciate the goal there and I think in general this is just a lovely project.
Awesome work!