Very wide field shot ! The extended nebulosity around horse and flame region is particularly impressive.
Where did you get your canon lens adapter for the SBIG from Phil ?
I would like to get one for my ST2000XCM because I have a selection of FD lenses that I bought 20 years ago including a FD 70-210mm F4 and a FD 2xB extender and I'd love to try some imaging with them. I saw them advertised on a US site but it said they would not supply to Oz.
Cheers
p.s.
I've attached an adjusted version of your image, hope you don't mind. I adjusted the levels mid range down to 80 then duplicated the layer and applied it as multiply at 50% opacity in PS. Nothing fancy, look forward to seeing your re-processed version.