This uses yellow (prompt #3) and some round elements (prompt #1).
Sometimes you just need to use a great older collection...this is mostly vintage October Afternoon, collection is Seaside. This is based on a sketch from the OA blog. I don't use many sketches, but I hadn't scrapped in a bit, and it got me motivated. There is a bit of recent OA in here and some Gossamer Blue too. I love this photo of my youngest in awe of the beautiful beach