Moons are a very trciky subject. When you are talking about night sky colours in the summer often you will end up with rather orange colours. In the winter, however, blue is the dominant colour. If you are going for realism, then it is also important to decide wether you want the focus on the moon, or the environment. It is also important to define how big the field of view is. For example when standing on a mountain taking a photo of a valley, you will end up with an overall brighter image than when taking a photo of said mountain (assuming there is no snow involved). That is simply, bacause the light has a lot more to reflect off of in a picture that covers more "volume". I have added two photos below, that should help you understand what I mean in terms of colours
More specifically onyour image:
Right now you have a full moon. Since that is the brightest it can get, It should be the brightest spot in the image.
Now the human eye is not capapble of focusing on the moon and the environment at the same time. So If you want to bring out the river and the cows more, you will end up with a brighter moon. Note that you sometimes end up with hard shadows, as if the sun was the light source.
I hope i wasn't too confusing