Steven;
The 2nd image is excellent IHMO, even more impressive given that this was your first attempt at this genre of shooting. I think that the foreground inlet adds to the mystical quality of the image and love the composition as a result.
I'm not a huge fan of the circular star trails in general so that clouds my judgement of the last two images but takes nothing away from the 'cool' factor and dedication that it took to capture them.
By the looks of it you might be 'star struck' and I'm guessing there will be a lot more sleepless nights in your future. I will look forward to seeing the results and hope that you have a very understanding partner in life
