M33 - Triangulum Galaxy

I captured this data over 3 nights but through very thin high cloud. I am afraid my processing skills are not up to making a better job of it - but after many hours trying, I have put this aside for the moment. If I try to stretch it anymore....there is too much noise evident.
I threw out so many subs but in the end this is a total of six and a half hours (Subs as listed on the Flickr page www.flickr.com/photos/kinch-astro/22810334996/in/dateposted/ )