OK Karen, here's what I think:
The 9-patches are all light to dark from left to right.
The green diamonds are slightly shaded from light to dark, from end to end (as you said you had done for all your diamonds), so your green ones are as the pattern anyway. The blue ones are shaded light to dark from left to right.
I see absolutely no reduction in beauty/attractiveness in placing the blue diamonds exactly as you have made them, just like the green ones, but up the other way. So that you place your blue diamond with the light end abutting the light square of each nine patch. This will give you a light area there - just like the light area of green in the centre. At the centre you will have the dark blue alternating with the light green. There is already a mid blue alternating with the light green, so the difference will hardly be noticeable at all. In fact, I think the dark side of the blue diamonds looks a little bit 'wrong' placed where it is - given that the greens are shaded the other way.
I believe you are absolutely fine, no real problem at all. You panicked because you saw it was different; but it is not a disaster, as you will see readily, when you look at it again thinking more calmly.
Hope that helps. . In message , "Karen, Queen of Squishies" writes