Gorgeous Dress by Anthropologie!

Dark Blue/Navy with multicolors (pinks, lime green, darker green, and pale orange) check out
the photos for more details please. :)
Semi-sheer viscose with metallic threads with some stretch
waistline has a spaghetti type drawstring at natural waist
Full length slip that is attached at top of shoulders. 
 - ruffled neckline back and sleeve openings and 'ruffled 'layered-looking'
part of the skirt
This might be a maxi on one person but midi depending upon their height. 
Measurements:
Total Length: 46 in top of shoulder to hemline
Length to waist: 15 in  top of shoulder to waist
Waist: 16 in X2 with some stretch / and drawstring 
Bust: 16 in + some stretch here as well. measured armpit to armpit X2
Suggested hand wash/or dry clean
Viscose is a semi-synthetic type of rayon used in many types of clothing.