ordered bm dresses

yesterday we ordered the bridesmaid dresses....they are tealength and they have 2 seems on the skirt of the dress, so i was asking lots of questions about the proper way to have them hemmed..do they all have to be on the same pplace on each girl, or should they be hemmed so they look the same length all around for pictures...i really wanted them to be the same straight across if the girls were standing in line, but the horrible women at the store was yelling at me telling me that it would look stupid...what do you think i should have done...
i will try to attach a picture of the dress for a better idea...i have no idea how to add a picture but i will try....thanks

no pic?

i'd say the hemming thing might depend on how tall your girls are. if some are a lot taller than others, then it probably wouldn't look right. maybe you could find some pics of groups of girls in tealengths and get an idea of what other people did.