For the ceremony we would do a very subtle gradation of color starting with yellow at the top, fading to orange and pink.
The photo below is a pretty close example of how subtle the gradation of color will be. You can see that it's a bit lighter at the top and fades to dark pinks towards the bottom.
However, our mandap will not have flowers coming down the two front pillars. It will be concentrated to the top rung, but very full, thick and wide. Similar to the top photo, which is also the very same structure we'll be using.
The bride's bouquet will be a big beautiful mix of bright summer flowers. All the same flowers as the rest of the wedding but with jasmine mixed in and all mixed together rather than a gradation.
The bridesmaids will be a simple mix of mainly marigold and zinnias with jasmine.
For the 4 long tables I would love to do a more dramatic gradation of color. I'm envisioning a dense gradient line running down the center of the table atop a turquoise runner.