Theoretically the cover will fit a 42 x 42 cm cushion by the time I complete it. I'm approximately two thirds of the way through creating the stripes. Once I've finished those I plan to embark on a little crochet embroidery and emphasize those wiggly stripes with some more thin, embossed stripes in the same colours but contrasting to the colour they are embroidered on...so more stripies.
I also consider this to be my first attempt at freeform crochet, despite it not being of the typical type, and freeform is exciting stuff....just take a gander at Ren's Fibre Art! I would love to explore in that direction.