Yep, most of the time it's a successful combination of colours/textures/stitches. And usually a visually rich yarn looks best in a simple stitch. Very well done!
Wonderful scarf! What is the yarn? It looks great just as you've used it, in a simple st pattern.
Thanks for your kind words! The yarn is "I Love This Cotton" #304 Stonewash. Garter stitch on size 8. Cast on 35 and knit until its the length you want