summer sweater

I picked up this very lightweight sweater on my hooray-I-have-a-paycheck-again shopping spree, thinking that it would be a nice polished option for teaching on the cooler days of summer.Now that I see the pictures, I'm not sold. It looks...cheap. And lumpy. Anyone know any tricks for smoothing out a sweater over a button-down? Maybe I should ditch the belt?At least my skirt is twirly.Sweater: GAP outletBlouse: Banana Republic outletBelt: thriftedSkirt: j.crew outlet (okay I am sensing a theme here)Boots: Steve Madden Girl via DSWBracelet: gift