Roksanda Ilincic colorblock tailored dress

Gorgeous dress by Roksanda Ilincic. it shows size 8, but I think that's UK size 8, which is US size 4. Pictured on size 6 dress form, but too small for it, can't zip it up. Exterior is near perfect, has a tiny dot on backside, see last pic. Interior has a few smudges, see last few pics. Otherwise dress is clean and odor free. Approx measurements: pit to pit 15" waist 12.5" hips 18" Nape to waist 15" waist to bottom 23"