This is a full picture of the jacket and the skirt I made the arms full lenght, but didn´t really measure so I had to add a strip for the hem. consider it a design feature!
and here´s the button I´m using
3 of them. I have to do buttonholes, sew the buttons and do some staystitching on the inside of the jacket. I omitted the bands on the arms, but used grosgrain in the back.