just a personal preference of composition. the plank is more dominant now...and also less elements exist in the picture which makes it more powerfull i think...
i use photoshop cs3
1. i did some shadow/highlight adjustment (image>adjustment>shadow highlight)
2. adjustment of colors with color balance (image>adjustment>color balance)
3. added more contrast
but now that i see it...maybe number 2 was enough...anyway