Mud flats in the North Sea/Germany

I want to learn and don't mind your critique.

If you decide it to rate my pictures lower than 4, please explain why

In critique of my other mud flat picture, Mike told me that both pics should be sharper. The originals were slides that I scanned and from which I removed dust and scratches using PS Elements 2. This caused a loss of crispness. I took Mike's suggestion to heart and re-edited the picture by applying the unsharp mask filter with a 100% setting and a radius of 2.0. The result is noticeably better.