FO: Crocheted Rainbow

My handspun crocheted rainbow is complete and blocked. Obviously it is not yet a complete and functioning cushion, but it is itself a nice object now that this stage of the making process is complete.

The crocheting of this cushion practically flew by up until the green section, which is when I started to feel the increasing length of each subsequent row of crochet.

Though the idea for this cushion was a simple one, the effect is exactly what I wanted to achieve with this special yarn. I thought of a number of different ways to make some kind of radial design with the rainbow shaded yarn, but what could be more fitting than a rainbow?