I think the whole idea with a OBW is to have the colors flow from one area to the next. The hex's on the far right with the hot pink in the center and the yellow around the edge should go up higher to connect the pink across the top to the yellow on the right side. I've made many of these and it really just takes some time to arrange and rearrange them before you find a layout you really like. When I first sort my hex's, I put them in piles of similar color on their edges and lay them on a paper plate. Then when I get to lay them out I'll have similar ones all together and don't have to hunt for ones that go together. I too would move the one with all the circles out of the center. Sometimes it works to start with a diagonal line of color and work off of that shape. Take pictures and redo it. Also use those cut wrong half hex's on the edges so you won't have to cut off your points. As someone else mentioned having a vertical design wall is very helpful with this process. If you can have it in a room where you can stand back 10 or more feet to look at the whole thing from further away, really helps. It's amazing how different the prints look when viewed from a distance.