Whose cute, pink frilly dress is this?

It belongs to this equally cute, pink rabbit doll called Usamomo.

Usamomo Doll from Creative Yoko (JP)

Swedish textile designer Pia Eriksson was  inspired by her daughter Thilde’s  fascination for laundry labels that were attached to her toys and blanket. This resulted in the Thilde range of security and educational dolls, pillows and rags attached with multiple, colourful labels.

From thilde.se

Charmingly beautiful 3D illustrations, reminiscent of painted wooden dolls, from Seiko Ohmori.