Worn with a sheer, flowery blouse, the black office costume is styled in a more feminine and romantic way. For me this has always been a way to create some dynamic around the black jacket.
There are a lot of variations of flowery blouses in sheer and transparent fabrics out in the shops, or perhaps even in your closets.
Just to tune things down and not overdo the romantic thing, I like that the background color for the flowers is black.
Slacks are from Whyred.
Shoes are from Arche.