Hi G,
Looks like the alignment and tracking are good - you might benefit from improving the focusing though as the image looks a little soft to me, could be the processing though.
BTW For guiding/aligning you might want to check out Guidemaster (
http://www.guidemaster.de/index_en.asp)- it's free - shows you real time drift graphically and has Polar Align routines buit in too...