Reese is wearing a Billy Reid Scout Dress, carrying a Chloe bag and donning Ray-Ran wayfarers, but for my budget take, I found a great bag under $100 by Olivia + Joy (Olivia Harris by Joy Gryson's affordable line, available at Macy's) and shades by LC Lauren Conrad. I'd wear this look in a heartbeat, would you?
[1] Love 21 Denim Dress $27.80
[2] LC Lauren Conrad Sunglasses $14.99 (down from $30)
[3] Torrid Boyfriend Watch $16.50
[4] Olivia + Joy Kiki Satchel $98
[5] Aldo Sandal $60 (down from $80)
http://www.kmart.com/shc/s/p_10151_10104_035B029708160001P?prdNo=9&blockNo=9&blockType=G9
I have them in black and they are very comfortable. I hadn't thought of pairing them with a denim dress but definitely will try it after seeing how cute Reese looks.
http://www.net-a-porter.com/product/164456