While Pipa Middleton has earned a well-deserved reputation for her impeccable and classic style, personally, I think she missed the mark by just a tad on this outfit.  The boots are too bulky and the three browns (belt, boots and bag) just look awkward to me.  So I decided to add my twist to the outfit by choosing pieces that compliment (rather than hinder) her look:  I replaced the boots with a longer, more chocolate colored pair, and instead of the solid colored bag, I chose a two-toned satchel to add depth.  

Cardigan at Cold water creek

Dress at Miss selfridge

Satchel at DSW

Belt at Forever21

Shirred Tall Boots at Yesstyle.com