So the chosen direction as shown.
Here is the next stage. I started with two shades of red and will progress with oranges and finish off with yellows.
The concept comes from one of the few quilting books I own, namely "Quilting Modern" by Jacquie Gering and Katie Pedersen. If you know this book then you may recognize the Fiesta Wall Quilt.
Off to the fabric store. They have a sale ongoing!
Have a splendid day!