Congrats on your first light Chris
. You chose a target well suited to your focal length. I can't help you with sorting the QHY8 & Martin may chime in with regard to Startools.
I can vouch for Nebulosity though, you've made a good choice there. My only other comment would be the obvious coma present which would require a field flattener or coma corrector depending on the type of scope you are using.
All the best going forward,
Tony