Whah!
That is deep dude! Probably faint details never imaged before. I know there is some HDR work there around the core, but thinking a lift in the mid tones for the periphery of the core might serve well (while pulling black clipping slightly). On the other hand, you may loose some punch doing that (very subjective). Stunning details around that area though. The cool thing is that you have shown the zones of recent star development (blue giants in the outer arms) and older yellow stars closer to the core. Amazing work!!!
