About the size,because the dance wear is manual measurement,so may
be there have about 1-2cm measure error.You could choice the sizes
based on the children's height,if the children is fat ,so you will
choice the big size.such as the children's height is 120cm,but
litter fat ,so the size 130cm you will choice.
About the color,different computer and different light will make
the color looks have a little different,also different shooting
angles will have some effect on the color.