Trevor
Andy, if you look closely at the star trails: are they even lines or do they show bumps? Maybe take a 30 secs exposure to see it better.
I'm asking because the EQ5 is listed with 9kg max load and the tube alone weighs 5.13kg - not including rings, finder, camera, dove tail bar etc.
The mount might be "aching" while tracking the load and that also adds to the trails.
Just saying... good to keep that in mind and not to expect too much
Your first image looks really pretty. Impressive what can be done with 3 secs exposures!