Here is my feedback:
1. You can see parts of the track while you are not there yet (for example in the start you can see a big part of the upcoming track) maybe this was the idea but otherwise I would change it.
2. You build the track pretty high up and the physics can work a little weird up there. In the end you can land on the yellow road and not be able to accelerate anymore.
3. the route is pretty hard to sightread and it took me 3 minutes to beat it on my first playtrough although its not really a hard track.
4. last, not a really big problem, but still something to mention: the start feels not really detailed but the end is really detailed. It feels better to have a track thats equally detailed everywhere.
But it is a really nice looking track, really good to hear you were building for 2 months but didnt stop! You are a good builder. I hope this feedback helped :)
Also: 46.994 - sub 47 :D