This game looks small until you open the galaxy map.
I like space games and this one has a lot of possibilities, space battle, trading, exploration, ship customisation, mining...
Here's some feedback for you.
-You should add some basic sounds even for your wip version.
-At first I didn't know the control and forgot to check the help icon. Maybe a screen explaining it when you start a new game.
-The graphics are clean and soft but the background looks empty.
-The galaxy map is really cool and I think it gives a bigger dimension to the game. (by the way, it's "click to select solar system" not galaxy )
-The landing system is simple but it works, you add one city or something like this on each planets with an interface and it's good. (Or you can land on the planet and leave your ship but that's another game in the game)
-Shield could regenerate himself.
-Add space stations and friendly ships.
-New weapons. (missiles, better lasers, paralyzing laser, laser beam, tractor beam ...)
-Enemies could drop something.
-A text about the ressource when the mouse cursor is over the icon (Fer for Fe, Tin for Ti,...) and maybe a small description.
-Visual effects for the thrusters.
I had to stop cause of a bug, my laser stopped working (the drill too) it happened when I started to drill a planet.
To conclude, you have multiple directions for this game.
Keep up the good work!