Have you tried to download the image? As it is a very large file 5184×3456 to be exact... Considering the Image is taken through a glass window there is no much else to be done regarding detail but a good artist may be able to draw in the detail required.
In future It might be in your interest not make negative comments on stock images, we spend a lot of time and money making these available for use to all people. Thank you for understanding an I hope you are able to find better stock to use in the future.