Alberto, idea is good, I like it, but execution not so much. Sky is very nice, I have no clue why you had to add fake film scratches, they have negative, distractive impact. The powers of your editing software you should use rather on removing line of bright shore lights close to the right edge. They do nothing for the picture. Now there is a question why did you blast the face of your model with so much light ? If you wanted, in the middle of tonally rich background, Andy Warhol effect on her face, that's fine, But then your light from the strobe spilled on shoulders and the arm creating a messy, competing patches of brightness. For such a work you will need something like a snoot or better a grid on your flash for directing and some means of controlling the power of light.