Great work! That's a very nice game mechanic that you have there, and you put a lot of effort in making things well rounded for the jam: tutorials, story, "cutscenes" (moonshot 3D view, letter view). I've only played up to the promotion so far but I'll come back to it :)
Playing fullscreen on 1080p the UI is somewhat tiny, I think it could use some better scaling with the window size. Also I'd suggest adding some more screenshots from the cool elements of your game, e.g. a screenshot of the letter cutscene to add some variety, and some more levels. A GIF or gameplay video could also go a long way to show potential players that there's a neat gameplay here, even if the graphics might not be this entry's main initial appeal.