sometimes when you see another person in an outfit you really wanna wear it yourself. it's not even an inspiration, it's just obvious copying but hell, who cares.
and when you do it, when you recreate an outfit you liked on someone else, most of the time it won't feel right, it won't feel like it did when you looked at it on that other person for whatever reason - maybe you haven't got the right clothes to pull it off, maybe there's a key point missing, maybe you just found that other person so dazzling and beautiful that even when you wear the same stuff you won't ever feel yourself to be as pretty as them.
and sometimes you will like it.
but what the hell, just dance as you feel and everything will be fine.