I whipped up two of the blocks for the Mission quilt last night.
The one on the left I am not sure about. There isn't enough contrast between the different sections. I like the one on the right though. There is a balance between having a distinction between the sections and the colors of those sections tying them together. I will have to experiment some more on different configurations to see what I can come up with.
I will keep all the different blocks around though. Placing them against the background fabric may perk up the one on the left.