Welcome to 2015 52s Mark. A good subject to start with, but I tend to agree with d00d's comment - I would have kept the sea and some of the yellowish sand in, cloning out the little black arrow-shaped thingy if necessary. I think the additional contrasting tones and textures of the original shot make a more interesting image.
With over 90 starters for the year, I don’t think any of us have a chance of commenting on every entry every week, but I hope to keep popping in to each thread at least once in a while. Good luck for the rest of the year.