To evenly (ish) divide for four colors rather than 7, doing sections 1-4 in color A, color blending with A and B as written for section 5, doing section 6 in B, color blending in reverse for section 7 (so doing the larger solid section in the beginning with color B, then striping at the later part), doing sections 8-10 in color C, color blending as written for colors C and D in section 11, and doing sections 12-13 in color D (no color blending at the end). We’ll see how it turns out. Already have a second one using four colors planned.

Ran out of C right after the end of section 10.