Well done mate, i understand the weird feeling of not having the instructor next to you. My first solo was not the best circuit i had done, and balooned a bit on the landing, but a great feeling of achievement. It was good of you to pick your instructor up on the way back to the hanger. For thoes familar with Caboolture, My instructor walked back from runway 12 after heavy rain the day before, by the time he got back to the hanger, he was covered in mud, I thought mabey i should have gave him a lift back.
Anyway, Congrats