It looks nice, I think the dark blue next to the yellow needs to be a few threads bigger. Even on zoom, which appears to be actually size, it is not really noticeable if you step back 2 feet.
At first I was not sure about the light blue, but again looking at it from a distance it has a nice off-set to the other colors,
There would be a number of interesting ways to pleat this;
yellow stripe
Blue Stripe
alternate yellow and blue
green