This shot would look a lot better when you enhance the colours a bit (saturation), and when you crop it at the right and the bottom (you're main subject is in the middle, as well as the lines of the composition). Regards, Marco.
Nice picture of your dog running away from the bridge, but what if you had him at the other end of the bridge running towards you and showing us more bridge?
Nice colors, nice wood tones, i like that color on the pipe
Good motion stop, but weak composition. A bit too much bullseye, including more of the bridge (don't worry about cutting of a large section of the left) would position the dog more to the left. Avoid putting the horizon line (here it is in front of the bridge) in the middle. Remember to keep space in the front of the dog, you need to show space where it can run into like you did here.