I've been experimenting with this technique and I like the results!
First I masked off a frame around the edges of the card with low tack tape. Next, I stamped and colored the image, then applied a VersaMark pen over the flowers and added clear EP. After heat embossing I sponged the background colors over everything, rubbed excess off with a tissue, and then removed the tape that created the frame. The clear EP keeps the colors of the flowers true and permits the background inks to be added without spoiling the image.
I'll be trying some other techniques with this stamp set in the next few days.
Thanks for visiting,