Try not to leave your camera on 800 ISO when you're shooting outside... it hurt these images I think.
#1 looks like it was supposed to be a work of symmetry, but the benches are weighted to the right side. Also, the ground/deck is mostly blown highlights..
#2 - the whole picture needs to be rotated clockwise a few degrees to be straight. The lighthouse is a little too far on the right side of the frame, would have been better to use the rule of thirds here and leave some space to the left of it.
#3 - the blurry foreground rocks and the huge radio antenna hurt this image a bit. Also it looks oversaturated.
#4 - liking it. Sometimes it's interesting to have your subject so close to the bottom of the frame I think. I've seen some photojournalism shots that use this style and it sometimes yields very dramatic photos. I do think the image quality is suffering on this one. Not sure if it got hurt in resizing or uploading to the web, hope your original is a bit cleaner.
Didn't mean to be harsh, just my take.