Tombow watercolor backgrounds are one of my favorite techniques. You scribble the tombow marker on an acrylic block. spritz it with water, rub it on the cardstock and let it dry. It's that easy! After it was dry, I stamped the bike on it and embossed the starry night background on the top with white embossing powder. Isn't that fun?!! Layered it on kraft, navy and navy petite hexagon and added a sentiment.
Check out all the variations - so great! Love the myriad of colors and combos that happen!
Give this technique a try - you will have a blast!!