There was no description on part 5 as to what this portion of the mandala signifies, but it sure is beautiful! You can find the instructions here.
I didn’t need any tweaking on this part for thread, but do remember to keep your sc’s slightly looser, for easier access on those back loops and back posts.
I did decide to add a circle of russets slip stitches around the yellow circles, to define them better, and make them stand out. One is complete in the picture.