I just tried youyr game out. There is a potential for a small fun game, but right now it's missing some things.

First of all it's to easy. I could just fly around in the same big area and wait for gems to pop up and not even get close to a wall.
The way the shpi flies invites yout to try and landt it. You can actually land the ship but then your life just counts down until you die. Doesn't make much sense to me :?
I think the game so far is lacking some sort of an action element. Something that doens't allow the player to be lame and just fly around in the same easy space.

But your game is just in alpha and is looking promising. If you work fast you can combine it with anothe game genre and submit it to the compo

btw. gfx is beautiful.