I stamped our tulip stamp using a light color Distress Ink called Old Paper. This gives you the outline you need so that you can watercolor over the top but still have the lines of the stamp as a guide.
For coloring the tulip, I didn't have my normal watercolor set with me so I ended up using another set but I liked the shimmer that this set has, so it was fun to use! (hello die also used on card)
Have a great day! Cindi