I have a couple of PSE compilations this morning. The boat image was overlayed on another picture of a gorgeous body of water. I always adjust the hue & saturation as well as the opacity. The 2ND photo is a striking "plain Jane" that turned out quite nice. Her photo was overlayed on a slate background. Again...I have adjusted the hue, saturation & opacity. She has such a serene look.
Now, I just enrolled in another Photoshop class with Gail Schmidt called
Down & Dirty the Digital Way through Creative workshops. I am loving it already because she does videos. You are not trying to follow directions from a piece of paper.
You can see exactly what she's doing. Also....the workshop doesn't close it's door on you after a certain amount of time. The videos are available for an unlimited amount of time. Now that's a workshop!