I love to play with variations. I used a Club Scrap stamp from Nature's Wonders with pigment ink and black embossing powder and heat set the image. Then I used some watercolor pencils and colored the green parts of the stamp and used blue to color the background. A sidenote, I bought these watercolor pencils in 1979ish and they still work beautifully.
In the top card, I used the color that brush picked to make a "frame" and then washed the rest across the inside. In the second card, I used a little more pencil, but after making the "frame" I didn't wash the color across the entire mat.
In the third card I did the same thing as the first, but then I took a craft knife and cut away part of the image and slid a small mat with a sentiment from Henna behind the cut.
In the fourth card, I just added the Henna sentiment directly to the Nature's Wonders colored image. Thank goodness for unmounted images and acrylic stamping blocks. It made it so easy to get the sentiment close to the flowers.