I suggest you don't try and learn new tricks for the time being, you actually have a good bag of tricks here. What you have to do now, is get style and go bigger. Oh yes, and learn switch, you'll see it's a whole new world.
For more stye on rails, I'd say you should get lower, and don't be so in a rush for 27s out, you are poping out of the rail even harder than on a jump. And that's a trick to get more style, is to rotate in a one smooth movement, the upper body must not turn faster than the lower body. Get my point ?