These are "Color In" dresses by Berber Soepboer and Michiel Schuurman (who must be Dutch). They arrive black and white with pens. What I like is:
-The line, although for dance the opaque skirt is just plain tricky. You lose the individual lines of the legs, but get the movement of fabric. A perennial toss-up.
-The way gray scale darkens above the waist, creating a cinched look.
-The pattern which is all-over and busy but unified. I can imagine this kind of active visual overlaid on Michael's chair colors and concept.
-The fit - lean, clean.
Eva likes to wear loose things and Vicky has gradually been trying to get her to wear tops that hug her form. She might be allergic to this!