Ok, let's split that up shall we?
A: Incorrect, you should have written "An", since the next word starts with an A/E/I/O/U.
insane: Looks like it yeah.
spinning coaster: Could be, depends on when and where you unlock and lock the car.
with some: Nothing wrong here.
crazy: It looks crazy. Unrealistic, but crazy.
new elements: Uhm... No... You can find this stuff in any trashfolder from any NL owner. But I can understand the reason why you think it's new. Since nobody ever uploaded or showed rides like this.
.: Good, you finished your sentence with a dot. Hooray!
URL: Awesome, you gave us a link to your screenshots!