Amazing look! It caught my eye, amongst a whole page of other photos. I seen Bear Music's advice photo, and I must admit I like the comp he used. I would also add to his, just a smidgin of dodge/clone.
I've been using some new techniques for my grainy skies, you know to smooth em out a little. It works to a moderate extent, I would share the technique if your interested. (I call it new, probably not, but something I have just recently realized, LOL.)
this is a moody shot with a lot of potential, much of it unrealized. The composition is an issue, because it is very static, with the lighthouse too centered for the powerful, turbulent context of the image. It's also very fuzzy-looking. There doesn't seem to be much you can do about that, but you CAN reframe the image if you like to give more dynamic power to the composition, something like this... I have also added in some USM and adjusted the levels for more pop.
How pretty. I like the centering of the subject, which usually isn't my favorite way of displaying a single subject. The texture of the rocks in the forground really ground it. Lovely sky!!!