It's too bright for a night scene and saturated overall for my tastes. In terms of picture elements there are four eye catching centers of interest, the church on the hill and its strong reflection and the guy in the foreground and the red boat in the foreground which form a triangle with the white boat in the middle of it.
In the edit below I cropped in tighter on the boat and guy to make those elements like bookends framing the church, then I desaturated and adjusted tonality with adjustment layers.
The problem compositionally for me with this shot is the guy in the foreground. Him being in the photo doesn't add anything interesting to the storyline here for me because I don't know him personally and can't recognize him from the back. So for me he's a brightly lit blight on an otherwise blissful harbor shot.
My "rule of thumb" for whether or not something in a photo is a distraction or not is the "Would you miss it?" test. For example if you first saw the photo like this....
--- would you think "Hey, why isn't there a guy sitting on the dock with his back turned to the camera in the shot?" Probably not, so that's a clue that all things considered the photo might work better without the guy sitting on the dock in the photo. Sometimes the best approach to deal with distractions is to just crop them out rather than trying to tone them down as I did with my first edit.