Environment for Android game

Recently I have started making an Android game - 3D basketball shooting (also in plans release for another platforms). The idea is to make something very simple to get a grip on the work-flow. The scene itself is very simple to give a good experience on older smart phones. Polycount atm is around 4k.
I have a draft of environment (modelling and texturing around 3 hours, although I've used 2 of my old models)

And a quick peek from unity of the alpha state of the game (medium quality)

Haven't decided yet about the exact gameplay but it's surely gonna be challenging... very challenging :)