Wonderful
Nothing says art than a work with a lighthouse in it, heh. I see some great use of impressionism in this piece and it's well used. The details in the clouds and the contrast with the light is vivid. The piece overall is dark, but the contrasting light of the light house and the clouds really highlights the detail of the light emanating from it.
However, I'm not too sold on the detail on the right of the light house. I think it should be straighter, especially if you have the top of the lighthouse and the railing of the light part fairly straight the side will need to be as well.
Overall it's a wonderful piece aside from some minor issues and I enjoyed it. Keep up the good work!