There are different styles that can be achieve in images, choosing one depends on what the concept requires.

The box needed to be alterd, so that it will make the model stand out more.

The eye didn't catch enough of the light making them look dead, so I added life back into them.

The backdrop was not perfect so a little post helps clean it up.

Some people have birthmarks and cleaning them up gives them a better complexion.

In this photo, Zac had a great pose, but when I took the photo I didn't account for the pole behind him, which ruin the composition.

Laura had some dark hair, but the hair light shining on her was not bright enough. I added highlights, to create more volume to the hair.

Michael had a great character pose here, I retouch some of the wrinkles to help enhance the photo further. "Instant fountain of youth."

Karolina had a bit of a scar on her forehead, which was removed in the retouching process.