City skyline photos at night over water usually make excellent images. The lights and the reflection create some excellent postcard images dappled with color. This shot has a lot of those qualities, but in my opinion, there is simply too much negative (or unused) space within the frame. Maybe a tighter composition with a longer lens would create more impact in this image. Since I'm not familiar with Wellington, there is nothing within this image that identifies your city from any other city that might be photographed this way. This image is more about light and some possible texture rather than a portrait of a city, in my opinion. I challenge you to reshoot this photo and fill your frame with some of this beautiful light and reflection :)
The silhoutte of the trees/bushes in the foreground is distracting, but I realize excluding them may not have been possible. The lights are nice but for met the shot is taken from too far away for them to be as impressive as I imagine they are.