I gave this track a try, and it looks quite nice. While it very probably won't become one of my favorite tracks, it's still fun to drive and features a nice feeling.
There are four things I would change, though: First of all, change the sky. It moves way too fast and is creating rather a stormy than a peaceful ambiance. Second, you may want to modify the flowers: Instead of having two or three big bunches, it might look better to have individual flowers scattered around. Third, please change the walls or make them at least broken at some points to make them look more interesting. As they are now, they look a bit like prison walls, IYSWIM. And finally, you may want to make the finish line stand out a bit, as it is rather hard to see as it is right now.
Another thing is that your track takes a really long time to load. I have no idea why this is, but maybe you can look into this as well.
