Paul
Don't worry if people pick ya photos sometimes, it is easy to become bitter and twisted
. Many of us do look at images to be more than just "perfect" as far as processing and image quality goes. As you point out there is a lot more to an image than perfection in acquisition and processing.
When an image of a well known object is posted in a traditional way it is inevitable that some might point out any obvious imperfections they notice as it is being presented in a dime-a-dozen way, so this your latest representation of Eta Carina region is very refreshing and reminds us that it is not about getting a perfect image everytime but instead remembering what it is we are imaging and to have a look more carefully at what we have captured rather than just the overall "look" of the image.
Nicely done
Mike