Hi Ben,
The M8 nebulosity has come out really good, the only criticism I can offer is the lack of star colour and the purple background.
I also use Startools and the colour module usually produces vivid orange and blue stars.
So I'm not sure what when wrong there.
If you saved the 16bit Tif version you can reload it into Startools and go into the colour module and tweak the settings.
Cheers
Bill
EDIT: This is a link to M8 I did last year with Startools
http://www.iceinspace.com.au/forum/s...d.php?t=147095