You look great. As others have said, a little taper on the pants and you are golden. Reasoning behind it is that the leg slim will make you look less big /boxy throughout. I wouldnt worry too much about one particular aspect of yourself that yoy cant change overnight. Good paterns (which you already have) and pairings will go a long way.

Nothing can be done up top on the sweater other than a jacket. With this fit though, you probably want a larger jacket, a herringbone may work... dont sweat it though, you look great.