Your focus was probably spot on, on Friday night. I too was out there trying to get a decent shot and the seeing was horrible. Focussing was really difficult and what you've got is the best I would expect under those conditions. I stayed out in the cold until after midnight hoping conditions would change but they actually got worse as high cloud started to move in. Very disappointing, after the Skippy Sky forecast was looking so promising earlier in the day. I was expecting much better results.
Your moon transit though, is nice to see and well done for giving it a go.
The experience will help you for when you try again another night. It really is lucky imaging!
