✔ 最佳答案
The color of the rocks are being influenced by the overcast day - which always leaves a bluish cast over the whole photo. You can overcome this two ways. I am not sure if this is shot on a digital camera. If it is, set the white balance to 'overcast or cloudy' before the shot. This will remove the blue cast.
You can also do this later in a photo processing software by changing the color balance to a more warm tone. For example in Photoshop elements you can try: Enhance> adjust color > remove color cast.
Try to crop some sky out of the picture (about 1/4th from each top and right) as there is no variance in that zone and overcast light has rendered it flat. That will take the eyes to end of the walkway and also bring the figures on left to comply closer with the classic rule of third: the point of interest should be at any of the cross points in the one third of the photo. Please see the link below.
Enjoy!