This is sweater in classic gray. I view sweaters like this as the century version of the gray flannel suit. A good cardigan or jacket or top coat in gray makes a nice impression and I think a professional one, even in a casual crowd without being stuffy.
I'm in love with the t shirt. Could go with pretty much anything! Not feeling the sneakers with this look. I also feel there is too much floral going on. However at first glance I love the look - now I'm just nitpicking