Listen, all I can say is what I say to a lot of other topics like this that are started;
By posting up here, you're asking for constructive criticism? So, if I was you, I'd start using No Limits a lot more, get practicing, making some more realistic designs usually works. You're best "tools" would be to use "Ctrl+I" (Cmmd+I on a mac) to make straight track pieces. Then for smoother curved tracks it's "Ctrl+G" (Cmmd +G). Start practicing a lot more and such. You've got a long way to go before making good track, I'm guessing you've not had it long?
By the way, I'm not being funny/nasty, I hope you see where I'm coming from?