This is very similar to a card I made about a week ago. In fact, the watercolored panel is a leftover from my previous card.
I stepped up the main panel by adding a special effect on top. I used my palette knife to scrap on a clear drying gel medium that is filled with tiny glass beads. The beads add texture, sparkle and shine to the panel - it is really beautiful and I have close-up photos on my blog if you want to take a look. I thought my son Jer would appreciate this "arsty" card since he is an artist and art teacher. :)