I am a little biased, since I work at J Crew, but I am always surprised at their collection. It is wonderfully fashion forward and even with my discount I still can't afford the collection pieces. I lust after them every season!
My favorite thing from this look is the sweatpant shorts! I am totally going to work that into my wardrobe this fall. I also love all of the different textures and tonalities of black. If you're one of those people who wear all black, you should do it this way!

The only thing that I can think of when I see this look is "At least I didn't skin a collie for my backpack." (I hope you got my Clueless reference.) I also love the jacket, and the play of proportions, the short skirt with the blousy jacket. I am really loving the tan colors that are becoming more prevalent for fall. They are rich and warm and inviting.
Anyone who think J Crew is preppy needs to look at this look. Nothing more to be said.