This image has a lot going on, in terms of stellar lifecycle.  First, we have Barnard 175, the pillar of cosmic dust in the middle of the image, sometimes referred to as a Bok Globule.  These ultra-cold, dense regions of gas are often the birthing grounds of stars, and that's exactly what we see here if we look closely: at the very top of the column, on the right, you'll see a bright orange flicker.  This is Herbig Haro object 450, a jet of gas emitted from a newly formed star.  On the other side of this column is van den Berg 152, a bright blue reflection nebula lit up by the older white dwarf star within it. 

While B175 shows us the birth and life of a star, on the right hand side of the image you'll see the faint red remnants of the death of a star via supernova explosion,  SNR 110.3+11.3.  This ancient shock wave is headed toward Barnard 175 and its stellar nursery, if not already interacting with it.  So much interesting stuff to see in just one image, I couldn't resist trying to capture it all. 

In terms of processing, this one was a little tricky: I wanted to capture both the faint dust as well as highlight the supernova remnant.  For the dust, I had to get in some more integration time than normal to get the best SNR I could, then do some careful stretches to bring out the detail.  One byproduct of this was that the stars ended up being too big and bright to my liking, even when I tried masking them, and I thought they were distracting.  So I used @Adam Block's  star de-emphasis technique to create a separate image, then blended the two to taste to create a subtle de-emphasis.  For the supernova remnant, I shot some separate Ha and blended it using the NaRGB script in Pixinsight.  I also took the luminance from this NRGB image and combined it with my 10 hours of luminance data to create a superluminance, and applied that to the final image: just using the luminance data alone didn't work, since it didn't have as much Ha in it, but the superluminance got the job done.  From there it was just curves and cropping to taste.  As always, all commentary and critiques are welcome.