Model is 5ft 5in  wears size UK 10-12 / Medium.

Standard Measurements
Centimeters
UK 6-8 10-12 14-16
Dress S M L
Bust 93.6 101.6 109.6
Hips 96.8 104.8 112.8
Sleeve Length 56 57 58
Length 90.5 92.5 94.5