I'm loving your flowers. Having the same colors just adds a connectiveness in the blocks. You have 113 to do, so don't worry. We all worried a lot as we were going along. At the end we found that seldom did we end up with glaring color combinations.
Also, the group did a posting of their first 25 blocks. It help us to see where we were going. Also, many asked for opinions on what they should add...more light, dark, color. It helps to have a fresh eye looking at it.
We also did 50, 75 and I think then we waiting until the end. Not sure.