They have some seriously talented designers in that town, the window boxes are so gorgeous!!

Studio DD
Readymade Borders: Neutral No. 02

L. Grieveson
Wind Whispers Mini-Kit
Hint At It Urban No. 02

A. Edwards
Glorious Travel Moments Brushes and Stamps

K. Pertiet
Arctic Whites Paper Pack No. 03
Messy Stitched Circles: White No. 01

(and thanks to Katie's awesome tutorial on how to create paintings, which can be found on her blog)