Vignette is nice in the first one but the boat is a little far left in the frame and the backgroun is a little bit uninteresting. With a bad background you could take the shot from a higher angle and aim down at the boat.
Second one is a nice scene. Looks like you did a bit of interesting processing work on it. Gives it a bit of a surreal feel. Unfortunately the sky is a bit dull and the water at the bottom of the pic is a bit bright but this is probably my favourite of the four shots.
Thirsd is nice but unfortunately the eyes are very dark. With the dogs head taking up so much of teh frame it is important to have really good eye contact with him. I think you got a bit of your knee in the shot as well and you chopped a bit of his mouth off the frame but otherwise anice shot.
Nice sky colour in the last if not a little unrealistic looking but the house silhouettes are too large at the bottom of the screen. You could probably chop off a little from the bottom and there’s an area of the sky that is a bit blown.
A nice set. A little bit large to view in this window. Maybe try limiting to 800 pixels on the long side. Keep em coming though.