I really love your works Tiago, this is a real masterpiece. One thing I found and I wish you look at:
https://www.youtube.com/watch?v=5RFD790Y7ts
I raced tons of time in your circuit and I found two little difference from real one, hope it will help to improve. Turn 3 is a little more soft, while the most important, the blind turn around the end of the circuit have a little less elevation angle and can be seen, while in your is near to complete blind. Renew my compliments, really a well done job.
Merry Xmas mate!