I'm pretty sure you have some friends. Please, show them your game in an early state like this and ask them for some feedback and wait till you actually have something playable to upload here. Creating some sprites for fighter/bomber/airport/(etc) should be done within 15 minutes. Was it really worth sparing this few minutes? Like this, it seems like you just want to hear how awesome it is that you tried to create a game at all. But well, there is nothing to play so choosing a rating is quiet easy.