Chris,
In portuguese, the "Da" in "Da Yolanda" is a abbreviation for "Dona", "Mrs. Yolanda" in english.
If you google coerulea 'Dona Yolanda', you can find photos in a japanese site, following this link:
http://www1-1.kcn.ne.jp/~widehill/newpage55.htm
Nice walkeriana, congratulations!