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I like the composition, although a little less foreground might not hurt. To my eye, the area of sand at lower left gets just a little too much 'air time.'
IMO, the basic problem us the horrible light. I know we can't always choose when and where we shoot, but this shot really needs the sun to be somewhere else. Fiddling with blackpoint (up a few clicks) and stretching the middle-upper section of the tonal curve to separate some of the contrast helps a little, but...
IMO, the B/W tweak is the way to go.