Hi Leon,
You must have been cold last night
. Nice widefield image. I agree with the other posters, more data never hurts.
I used to think flats were hard. I just took 3 in about 5 minutes. I stretch a grey tshirt over the lens and point the scope at the sky. Depending on the time of day I shoot for between .1 and 2 seconds; basically until the photo is half saturated. You know you have done it correctly when you see nice dust bunnies on the photo.
It helps to mark the camera orientation and leave the focusser at the last focus position.
Paul