Some lovely resolution there Martin!
You have captured the busy mess in this galaxy very nicely.
The background galaxies look nice and tight too
I see the dark line the others are refering to (what caused this?) but it's not that big a deal really.
I think the small FOV doesn't do the galaxy justice, seems too close with no surrounding space (?) would probably benifit from a two frame mozaic?
Thanks for the look
Mike