Sunset Image 

Before

After

In this image, I removed some unflattering objects in the background with the spot-healing brush tool. I change the contrast to make the photo more warm. I made the sky brighter and more noticeable so that is the first thing your eye catches when you see the image. the only difficulty I had while editing was trying to get the saturation and color of the image just right so that it didn't turn out too yellow. it was quite easy to accomplish this other than some small minor inconvenience. I will vary my skills and edit more images to become great at it eventually.