This track is pretty neat. However, there's a handful of issues that keep me from giving it any more than two stars.
A lot of the geometry appears to not have smooth shading on, which gives them a weird blocky appearance. The use of textures ( lotta specular on grass and no normal map makes it look glossy and off). I really like the overall look of the track, the use of props and other details is neat, though GrassFX appears to be unused.
I would love to see an update that addresses these issues.