Then, I arranged the repeat. It turns out, even this process is a bit subconscious for me. I'm sure there's a formula, or trick, or something for this step but for now I eye-ball it to make it work. It's probably the long way of doing things but it works. I evenly distributed the flowers so the same colors don't touch, creating balance within the design. As I examine what I did, it seems I scattered about 4-6 of each flower within the repeating area. In retrospect, I suppose I did apply a bit of a mathematical strategy, just not in a preconceived, calculated way.
As for the contest, I placed 15th out of 157 entries with 254 votes for UrbanBouquet. My highest ranking entry so far! While I've gotten more votes on other designs, this design is still generating viewers that are marking it as a 'favorite'. And I've even sold a swatch to a customer who says she has plans for curtains! I hope she doesn't change her mind.