Its too small. Everything but the track should be a bit Bigger. The opening is too small for most vehicles, it would not fit on any normal road, and the brick guarders look bad at that size. It works as crosswalk for pedestrians.
I understand it was a remake of a "mini" version, but Id like to see a normal sized one.
Also, why include a specific colorset when the build only uses a few shades of grey, red, blue and brown?