I quite like the supposedly deadly tilted horizon, but the sky/ocean ratio seems out of balance.
After playing with it a bit, I've found two options that my eye likes.
A - Crop about 25% off the top.
B - Crop off the top 'till you get a square format. I like this the best - it places the strong diagonal full of 'interesting things' dead center.
In either event, I'm sorely tempted to bump the shadow levels a bit, to separate the beautiful wave reflections, and to allow the water+ice to 'compete' with the bright sky.
Something like this, maybe?