First Image: I would have off set the road, it isn't as interesting (to me) with it centered. Exposure is great, shadows on the road are excellent.
Second Image: The watchtower is a little cut off, either crop half of it off or put it all in the frame. The people are a little distracting semi-framed in the frame. And then the island out there also messes with this photo a little, hard to know what to look at? Again colors are great, exposure is great.
Third Image: This is my favorite of the group, the skewed angle works, the shallow DOF works, great mix of colors.
I really like all of them together, I can almost smell the saltwater. Thanks for posting.