It has to do with the material. Exaple>>1583886
The base of this should be silk and it should be embroidered. Sure that would cost $100 a costume if you bought it in China but thats nothing compared to what your making and now your uniform looks like shit becuase when you move around in it it doesnt go back to normal.
The first one I commented on shouldnt have been tight cloth, its clearly too tight and high on the hips so its riding up when she dances. Im not even into cloths but I can clearly see the problem and its that they didnt get a good tailor. Instead they Chose to go the cheap way and make a few hundred extra dollars and in exchange they dont look as good which is the whole point in what they do.