Nice image Barb and David. Not sure if the seeing was on your side however. Not the usual sharpness. It may help to review your subs closely to determine if there are one to two offending frames. If so, remove them from the stack. Its always nice to combine as much data as possible for noise reduction, but when the data is mediocre, it will not yield a better result. (less can be better!)
As Frank mentions, some unsharpening can do wonders, but be careful you don't take it too far. The use of the high pass filter (HPF) may give you finer control in extracting details. In all instances of sharpening, mask the stars as the consequences are usually nasty if not done. The only exception to this is clusters where you're trying to make the stars pop - but even then application of sharpening should be very low if you're trying to keep the scene natural. I do like the colours you've portrayed in this image. Overall well done. Looking forward to when you bite the bullet and try imaging at 2350mm and chase some distant galaxies.