Maybe it's just me... but I can't get what you are supposed to do here :D
But zooming from one planet to the other, event if a bit cluncky at times, is really fun. I really love the artistic choiches for clouds and vegetation, and seeing an example of flat with smooth shading side by side, something I'm experimenting with too.
I can guess the approach you took this project (first jam for me too!), and I see the fun in making it. Sort out some camera problems, and smooth out the approach to planets (maybe the ship can orient itself a bit when you get close? That would make the landing and take of dynamic seamless) and you have a nice little thing to develop further!