Hello Mark,
Thanks for the extra info. For anyone wishing to look at that Rose galaxy image, google 'Rose galaxy sky at night'.
To be blunt, if that was entered in a beauty contest for galaxy images it would be an also ran. Thank goodness that the magazine photo pickers aren't like me, and know enough to recognise a great image on its merits.
What a challenging galaxy, and such commitment to put in the effort probably not knowing if you could pull it off. The smallest I've imaged with an sct which is still recognisable, is the ring nebula. What you took probably would fit inside the ring with plenty of room to spare. I doubt it covers more than a couple of hundred pixels and then consider it was taken in the UK, really impressive.
Clear skies,
Ray