I've always been a bit jealous of Diego's Photoshop ability to get smooth results out of short integrations
For some reason there is a lot of noise in the brighter centre of the galaxy, more than in the lower SNR regions. Not sure why.
Hope you don't mind but I've also realigned the colour channels (just shifted the RGB histograms) as it had a heavy blue bias. Also darkened the background as that's my personal preference, not everyones though.