@Vezelay I like your fabric. I've done numerous D9P. Love it, easy enough to cut and assemble. Remember you're going to be cutting the 9P into quarters. You end up with 3 different sized patches which will dramatically change how things look. What I learned, or figured out on my own, as I winged everything about it is a formula is useful. You might even want to take some other scraps, any size, cut squares, all the same size and sew up a couple of test blocks then cut them down the middle, across the middle without moving anything. It makes it easier. Or really I test stuff with construction paper.
So ignoring seam allowances for now, after you cut you have four full 5" squares, the same number of 2 ½" squares and eight 2 ½ x 5 rectangles.
I like to use a similar value or intensity of color in the same position. When arranging the 9P I always put something that will pop in the center position as that will be the smallest squares. Sometimes something that contrasts. Then the four outside corners I use something I want to have dominate as those remain whole. The other 4 squares, sort of in a plus sign arrangement are filler to me as those are going to be cut in half into rectangles and scattered everywhere.
So, you can just randomly put together nine squares or use some consistent repetition, like always the same fabric for the middle squares, always lights in the corner and darks for the others.
With your fabrics I'd be inclined to use the darkest one for the center, then darks for the corners which stay whole and lights for the ones that get cut into rectangles. If it were actually me
I'd get a small tone on tone print in red or yellow to use for the center and have little pops of bright color scattered about. I'm that way.
Let me give you an example. I had yard or two of a lovely bold floral print, off white background and some reddish orange cabbage roses dominating the other flowers and leaves. It screams springtime. I used that for the outside corners which stayed whole. I found a tiny print the same reddish orange color as the roses for the center squares which get cut up. So that was my color pop. For the other squares I used multiple green fabrics that either had leaves on them or had the right feel for leaves in greens that didn't clash with the leaves in the floral print. Those were the ones that became rectangles. It was very effective.
Lots of words but I wanted you to be able to visualize.
Your fabrics are fine.