First I used reinkers and an Aqua Painter on glossy paper, but I didn't like the way they blended.
Then I used regular Whisper White and reinkers with an Aqua Painter. I thought this was better, but still wanted a smoother blend. (I haven't quite mastered the art of watercolor yet.)
Next I grabbed my Copic markers, but the blending wasn't quite right... then I realized I was still using Whisper White.Finally, I had my Copic Blending Card Stock and Copic markers. I liked it the best so that one, so it made it on my card.
The background technique was done with our new glossy paper and two ink pads, Bermuda Bay and Old Olive. Shannon gives directions on the Stampin' Up! Blog post linked above.