Graphics are outstanding good. And the audio blends well into your game.
I've missed an indicator giving me a hint in which direction the target is located. And I found it confusing that I am loosing enery while drifting in space without using using the booster. In almost all space-adventure movies there is this moment, where the hero runs out of fuel - and gets saved thanks to the innertia carrying him on ;-)
Anyway - overall your game leaves a good impression!