There are simple ways or additions to a style that will change the overall look of that style. It may be as simple as a peplum, exaggerated sleeves or an embellishment that changes the overall look of that style from drab to fab.
Perhaps, it could even be the removal of an entire sleeve like that first picture in this post where @_its_eyramgh had only one arm with the exaggerated sleeve and the other was left as a short sleeve.
As seen in amillionstyle.com