I really enjoyed this class.  Here's my first attempt at a seamless repeat.  Starting with my initial doodle style design and then cutting it in four, filling in the gaps and putting it back together.  I will see how this repeats over a larger area and upload the results when I can.  I think when I do this next time, I will try to keep it a bit 'cleaner'.  If I was to use this I would need to clean it up in Photoshop I guess....but that's another lesson for another day :)