I loved the atmosphere and graphics! It starts really easy and chill, but it actually becomes quite a brainburner as time passes. My empire peaked at 29 planets!
I had some trouble keeping in mind that the rings meant what the planet produces and the dots meant what it needs, so I spent a bit of time and mental effort trying to actively keep that in mind. If you can figure out a way to make it visually more obvious, I think it will be that much easier for players to enter the flow.
The idea is very solid and building your network felt really satisfying, I enjoyed playing! Thanks for sharing your game!