Continuing with the Twilight theme, let’s take our vampire and put him in the right setting. I’ve taken the original photograph that I want
to use and first made all the desired changes in the original photograph, such as adding the gaussian glow to make him pale and sephoric, creating the glowing eyes, and even get rid of any acne. Here is the progression of my vampire from the original to the finished product (without the background):


Now we’ll use the magnetic lasso tool to cut him out and put him wherever we want him to be. The magnetic lasso in the tools pallet with the other lasso options. The magnetic feature helps the computer figure out what you want selected. Especially with high contrasting colorings, the magnetic lasso will easily cling to an image. Just click anywhere on the path, release, and the lasso will follow the path of your mouse until you connect the end point to the starting point. You can click anywhere along the way to help put the points exactly where you want them. Use the toolbar at the top of the screen to make other adjustments. Feather will impact how harsh or soft the difference is between the image you are cutting out and the entire image as a whole. 
You don’t always have to have perfect precision with the lasso tool. After you have the image selected, you can turn on the Quick Mask Mode by clicking on the bottom icon in the tools pallet that looks like a front loading washing machine. With this selected, you can go back and adjust your image. Using the paint brush will include more of the image in your selection and using the eraser tool will exclude those parts of the image in your selection. Here you can see my progression:




The dark shadows on this image make it difficult to see where the body ends and where the shadows begin, but since I know I’m placing him into another dark image, I’m not very concerned about this. All I have to do with him now is use the Move tool (arrow tool at the top of the tools pallet) and drag his layer into another picture. In my example, I’ll drag him into the forest.