Nice images. I would crop a bit off the bottom of each one. The lighthouse in the fitst image appears to be leaning back (toward the right) a bit. I would straighten it up. The step lead it very nicely into the frame.
Thanks for the comments.
I'd agree that a crop on the second shot is a good idea, although I like the flat colours of the sand there probably is too much of it. Don't think I'd crop the first though as I think the textures really give the foreground some nice interest
The lighthouse does lean in both shots & the horizons are pretty level - it was built in 1776 so I guess it's moved a little since then I suppose it could be a bit "off-putting" but I prefer to leave things as they are when possible