Jeans and jacket look great on you. You basically hit on all the things I like, as I tend to go more formal too. You might want to check out some of the wool outerwear, such as the slim peacoat and chesterfields, they'd look good on you too.
The jeans are a no brainer, as they're casual but still dressy relatively speaking.
Big fan of the cashmere sweaters, especially the crewneck. They look very good and are a simple design reminiscent of the DH days.
The only thing...