That is really pretty!
I admire that you were bold enough to bring in different colors from those suggested.
I am working on Part 7.
Lest anyone think that "it sure is taking her a LONG time" (which it is! <g>) I have an explanation.
During the cutting, I cut more pieces than I needed, just in case and while putting together the first part of the churn dash block, I have discovered that I am actually stitching enough blocks to make THREE of this quilt! I haven't decided if I am an over-achiever or just refuse to follow directions ... LOL
Anyway, I have stated many times that light areas in a quilt make me nervous and are not friend to me, but I am seeing that those neutral string blocks are very needed ... my neutrals are not as similar as your quilts are ... I will have to see if it is going to be anywhere near as pretty as yours is
Good job!<wave>