Very very cool set of pictures Alex.

Absolutely love the HH. Framing, colors and look at that details

. Tarantula is way cool too. You got a lot of very faintstuff in that shot. As for Eta, well .. grandiose!

Here's a quick trick you can try on your Eta shot. in PS, go to Filter>Noise>Reduce Noise & play with the sliders to get rid of the star colors - see attached shots. Also did it on your star version.