The dress is a round neckline with a tie bow.  The sleeve has a sligth puff  with a elastic. The waist has an elastic.  
 
Size of the Dresses
Medium- Bust 30" - 40"   Waist  28"-36  Hip 34"- 48
Large - Bust 36"    Waist  30"- 41"  Hip 36"-48"
XXlarge- Bust 44"  Waist  38"- 42" Hip 38"-58"