Using cropping tool

When considering when making a "cropping decision" I first think about what I would hope to achieve by cropping the photo and most importantly is it necessary. I first analyse where my eye is drawn too in the photo and decide whether its the main focal point. I then look at the proportions of the photo and look to see if there is any unused wasted space. If there is any space at any of the sides of the photo i decide whether it has a positive or a negative effect on the the photo. I have used it on a landscape taken in Chile because the sky was very plane and i felt that cropping the top of the photo would create a better photo, that displayed the depth of field in a more effective way. The viewers eye is now drawn towards the horizon rather than the dull sky so i feel the cropping I have done is a success.