Zaara did wear the Little Mass Pink Roses dress (US$82 in Everything But the Princess; size 6X only) at her birthday party on March 5 (by the way, Le Pink and Little Mass are the same company). The dress has tiny shoulder straps, so she wore it with a Mini Boden hot pink cardigan (US$40 at Nordstrom) and pink sequinned ballerina shoes. Beware though, the dress is short. Size 6 would fit a five-year old.
Little Mass has taken ruffles and rosettes
to a much higher plane (that is not to say that I like all of their dresses!). Just check out some of their ruffled avatars below. The red roses dress (US$66 in La Bella Flora; sizes 2-4) is similar in style to the pink one that Zaara wore at her party. So is the fuchsia rosebud dress (US$73 in Everything But the Princess; size 10 only). So very charming.