SMALL EDITS ON PHOTOS

So I got a bit sidetracked today with trying to figure out some basic editing skills on photoshop. I tried working on selecting certain parts of an image and just editing those spots (photo row 1). Deleting parts of an image is shown in row 2. This one was a bit challenging - even though I could delete parts of the background, it was hard to then create a more natural setting. Once again - practice makes perfect. Row 3 - I was trying to darken the skyline so it wasn't so washed out. Not sure if I like the darkness on the face as well... probably going to play around with that one some more later.