Great use of cut-offs. I also save all mine as to me its "GOLD" and not to be miss used. Just finished a log cabin quilt for a baby and had lots of cut-offs so used some into snowball blocks for the border and the rest will be pinwheels on the backing. Making use of every piece of scrap left for the backing as the fabric I picked out I didn't order enough.
Its great that you can make another quilt out of scraps and leftovers. Its like getting two for the price of one. Good work. Ocean Waves is on my bucket list too. Maybe scrappy like you did. Looks great to me.