I went with fun blues and created a larger background to mimic the water for my summer picture at the lake.
First I started with dots of acrylic paint in varying shades. Then I used an old gift card to do my scraping.
Messy threads on a water design is all kinds of texture and fun. I love the stitching border I used. I was going to frame it with patterned paper, but the background is so bold and colorful it was better to create texture and lines with multiple rows of machine stitching.
I love the watery and movement this background creates with the paint scraping technique. I hope you will give it a try and show us your creative take.