That looks much better, Andrew.
I'd now go back and play with the midtones, increase your blues, magentas and reds, each very slightly at a time to introduce the blue to the arms.
I nabbed this one last year with an STL-11000M and FSQ-106N (you can search for it if interested). I think I got 25 hours of data on it. I haven't yet processed it with the hydrogen alpha data. I'll try and capture more this year to round it out some more.
H
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