I also think this is a compelling image. However, I would clone away the house and the white structure at the beach edge of the bush.
I think if you tilted the camera down, you may miss the interesting land mass to the right.
I would try cropping the top half of the sky to give more prominence to the dunes.
If you did not like the resultant long, thin image after cropping the sky, I would use content aware scaling to compress the right third of the image (but not the right land mass) until you had a satisfying ratio with the height of the image. Doing this, would reduce the long distances between the orange "walls" of the dunes in that area and provide more interest there.
Roger