Your own question about that patch of grass is a good one ... it is a bit distracting, being an all different colour and all that ... and only protruding into the frame as it is. But I doubt composition would have been good with so much more dark sky as you would get if you shifted your camera as to exclude that patch of green. Once done, you might have to go for a pano crop... maybe? (Just trying to imagine this...)
Other than that you DO HAVE a very nice view and I like this nighttime photo a lot.