Very nice! Fogging and gradients overcome completely.
I normally shoot people who say "If there was nothing very special that you wanted to keep in the right hand 20%, you could crop it for artistic balance", so I've put on my Kevlar vest.
Good detail in the main galaxy, and you can see the little fellow about half-way toward 8 o'clock.
A good catch of this galaxy Dave. I always feel sorry for NGC4945 as it seems to be an ugly cousin against others. It has been presented quite proudly here.