I like the concept and graphics (the visual style is very original). However, I have a couple of recommendations:
1) You need a HUD that would indicate the FPV (positive and negative) on the radar plot and flight director. For inspiration, you can explore the control panel of real spacecraft
2) Also, for the game need a radio altimeter.
3) in fact, spaceships have several turn control modes: indication of angular velocity, the direction of rotation and direct control, and as I understand it, only the last control mode is implemented in the game, which is very rarely used IRL. Also, the inversion of the keys is a bit confusing, the fact is that traditionally only one axis of rotation can have an inversion of control - this is the pitch, I understand what the logic is, but the control of any aircraft is always designed in such a way that it is convenient for a person (the control must be ergonomic).
4) It seems that the game aspect ratio is 4: 3, but I doubt that such monitors are still left, the vast majority use monitors with 16:9. I think you should also focus on this aspect ratio, and you can use the additional areas on the sides for additional game elements.