James, that'a cool shot. I noticed the line right off the bat. That said, i'm no expert on getting my lines level with the earth, so this is just my observation.

I also think Roman is right on - a little higher, and a little more contrast/color in the sky.

Sweet job, I'd like to go there and see those for myself!

I just found this on the internet, so according to this guy, maybe level linse are not accurate?

"The mud flats are not perfectly flat. They are round to polygonal shapes with tiny channels surrounding each "pebble mud". When the winds are strong, the surface wet and slippery, a third force enters into the picture: The winds also travel beneath the rocks, swirling under the rocks, creating a Bernoulli Effect under the rocks, that is to say that fast swirling air create a pressure to "lift" the rocks and making them readily to be moved by high winds."