Joe, let's look at the wiring on that bottom right branch. Looks like you started at the Y close to the trunk and wired out 2 1/2 turns with the brown wire. (I would have started with the anchor on top, but that doesn't matter.). And then you doubled up.
You stopped right before another Y. At this Y, you started again at a crotch, this time with black wire. And again you doubled up.
The problem is, the brown wire ends, and the black wire starts. They don't overlap anywhere. That is, at least one piece of the brown wire should go up one leg of the next Y for 1 1/2 turns. Then when the black wire is added, that 1 1/2 turns where the two wires, one brown and one black, lay side by side, the black wire is anchored by the brown wire. As it stands now, there's nothing holding them together to act as a single unit. If you tried to bend the branch down, it could break at that spot instead of bending.