- Crops must be respected. Images have often been approved by agency. 
White balance
 - 18% grey card used on the day. White balance as shot is correct. This is particularly important for accurate skin tones. 
 - No filters
 - Frequency separation only for colours. Not for blurring the skin! 
 ColoUr matching 
 - Skin tones must be consistent across set 
 - Eye colour and makeup must be consistent across set