Wow! That’s a beautiful vantage point! Where, may I ask, were you when you took that photo?
I haven’t been to Colorado in forever, but with my experience with West Virginia and North Carolina mountains, it’s hard to know what “level” is. If you can’t see any horizon, and if all the hills are sloping in one direction, even a level picture can appear to be crooked. However, I think in your shot, the bank of clouds can be your clue for levelness. 🙂
This shot would probably look nice cropped more panoramically, I think, and I think pulling up the Clarity would be make it more epic!