I like the composition of this a lot - the lifeguard shack looks to be leaning towards the moon due to the shape of it and the tilted stilts of the platform.
A few processing suggestions to consider (with the understanding that LR raw support is not out yet if that is your weapon of choice) ...
1) I would try to increase the saturation of the sunset on the horizon (orange and yellow)
2) I might try to increase the contrast of the sunset and water a bit (local clarity in LR)
3) I would try to bring out the cloud and contrail a bit more with something like Nik CEP Tonal Contrast. That would also handle (2) as long as you placed a negative control point on the blue sky area to keep from bringing out noise there.