Thanks for the feedback!
We have some updates ready for after the jam ends. The landscape still needs work, but we took Jade's suggestion of a quick improvement and added a gradient over the background layer to give different coloring over different areas. We also made the minimap a bit bigger, and added a rocket icon that follows the edge to guide you back to the rocket. We originally had the size of the main viewport smaller and when we increased it we forgot to also increase the size of the minimap to match. We will also adjust the border coloring and see if that helps it stand out better.