It looks like your white balance is a bit off in the first two, 3 and 4 look abit wonky and the house sticking out the side is a bit weird. With 4 I don't think the B&W does anything for it and you've got a white thing in the bottom rhs.
Ultimately I think you need some great lighting, big seas or spectacular skies for this kind of shot to work, otherwise they lack drama and impact. I've tried a few times to get shots of lighthouses, but can never seem to get it quite right, it can be harder than you think!