For a traditional RGB image, the colours look very good Kevin. The image looks a little too soft for my liking. Not sure if this the data in general or the application of noise control. If you are using photoshop, you could try noise inverse masks to apply noise control to dim areas while leaving the brighter areas masked i.e. no or limited noise control applied. I did a tutorial for lightbuckets ages ago on the topic. You can view it
here, scroll to the right to see NIM.