Here's the level selction menu design for Mini Drift! How could I improve it?

I added reflection to water and a setting to make the water non-transparent for better performances! I also made a bit of optimisation! PS: the bug with the water not rendered correctly through leaves is now fixed :)

Here's the new main menu for my game: Mini Drift ! Any idea of how to improve it? What should the 5th button at the bottom be?

Wacky Rubberhose animation test

I added "coins" to my drifting game! They're useless for now but it's still cool in my opinion.

The Noise

Better skybox :D

Before/After

I made a new thumbnail using 1) A new and more realistic ambient occlusion (Added it in game, not only for the thumbnial)

2) The new lightning system

I might add night for some levels or a day/night cycle in the infinite mode. What do you think about it? Would it be an interesting feature? I also made the default car model which you can see here!