Those are some very cool mountains. I need to make the trip to New Zealand someday.
Your exposure is excellent. I think it could use a little bit of adjustment for contrast and sharpness. I only consider what comes out of the camera to be a starting point. Everything gets some adjustment and everything gets sharpened.
There is one big problem with this photo and that's the sky - there's way too much of it. Try scrolling up a bit so that the image is cropped just into the top of the cloud. See how the mountains become much more prominent and the composition comes alive. Centering your subject and having too much sky are common mistakes so it's no big deal. And cropping is easy. This is a very nice photo and with a tiny bit of work it will be an excellent photo.
