Hans,
Welcome to OPF. This scene is perfect for doing more work. I love the huts. This is a well loved setting for painters and photographers alike. As Bart suggests, the ND gradient filter can be limiting and today unless you are trying to shoot at a wide aperture in the bright sunlight, try bracketing and then fuse the layers by masking in photoshop or by one of the merging programs that can add up differently exposed areas to give a perfectly balanced image.
See
this picture by Max Lyons blended in Photoshop. Not really complicated. You might also look at Photomatix which a lot of folk really get addicted to! Watch one doesn't aggressively drift into the habit of getting an artificial look by extreme settings.
I'm not sure about that truck on the lower right. It's colorful and with it
all included in a Pano, it could be a useful anchor for a wider pano stitched image. In scenes like this, I try to get coverage of adjacent areas just in case I might want to include neighboring areas later on.
A lot of photographers really object to doing this as they want to make the picture in one shot and that's the composition that is then fixed. I am less religious about the truth since I believe in changing my mind in answer to how the picture develops.
Anyway, this picture reminds me of impressionist's love for the huts and bathers. I hope you continue with this motif to make it your own.
Asher