Zuzu, I really think it's ELLA'S ANGEL, by Pat Otterness.
http://wiki.irises.org/bin/vie...
I'm familiar with it because I think she's posted pictures of it in the TBIS Magazine, and right away I thought of it when I saw the colors and the name they had given you. The pictures I've seen of it look more like yours...
What do you think? The INTERSTELLAR GARDENS website might have pictures of it also, as that's where she posts hers.