When I saw this on the weekend, I pictured something much more graphic. Regardless, the idea is stil there. Barren trees against a barren sky.
On a side note: I have completed a review for the ExpoDisc White Balance Filter by ExpoImaging. The review may be read at: http://potd.chrisempey.com/tips/archives/2006/12/expodisc_white_1.php. This is a must have tool for anyone who relies on accurate colour without the need for a lot of post processing to achieve it.