My Plan A was to enter the Harlequins as my first Wild Card, but I got carried away in painting the Wave Serpent below. During the weekend, I was stuck in between; couldn't decide whether to finish the Harlequins or the Wave Serpent.
Browsing through the web, I stumbled upon an interesting technique. Which leads me to create my own stencil as below. We'll see whether I can pull this new technique off by this Friday.