Very Good Going there Andrew
Speshly for being new/ish to this planetary Imaging, ,
If at all for advice, with slrs, is bumping up the ISO, mostly normal for 800-1600, but some peeps here have gone upto 3200 & 6400
Bit much for me but' has been done and with very good results
You have all the details happening there that for sure, Good Stuff !
Onward & upwards from here