I actually surprised that you liked my UI :) I am never happy with my art, I only hope people will like gameplay.
Regarding sound... There is no sound in space ;) Ok, jokes aside - I was thinking about breathing and air hissing sounds but after roaming free sound sites for some time I did not found sounds that was sounding like those in my head. :) So I decided to go completely silent. BTW - the only thing that are not made by me in game is background stars, everything else is mine :)
In case if you guys and gals will like that game(regardless of it's final score), after jam I am going to rebuild it based on 3d graphics with fixed camera orientation, find someone who knows his way around sound tweaking to make sounds that I want and publish it on Steam.
Surely I will check out your game, I going to play random game until list is depleted :)