Your tile does remind me of surfboards. What fun, and glad it cheered your mood...it did mine!
surfboard was the first thought when I saw this...but then I thought "native" and now I see your blog is about Africa, and really those shapes are like the great shields you see in African culture. I like this piece a lot!
Thank you to Lucy and Heidi-Sue for cheering me on. Great to see your comments. Yes, shields also work, but I live next to the ocean so surfboards are a common sight around the coast.