guess you got that 255 sky thing figured out. nice job. i wonder how much work was done to this out of the camera...really like the contrasty look of it. curious to see how it looked right out of the cam. great pic.
I like the xposure of the clouds. My eye is drawn to them first, then to the boat, so I guess that counts as negative space, huh? (seems like there's a lot of discussion regarding what is or isn't neg space)
I'm not sure if the negative space is much hera, maybe you should have kick it with a bit more contrast? - the I guess you would have gotten the sky to blown out, so I am not sure, but this is a good horizon/sky/landscape shot...