How to cut out an image in Photoshop

1. Open an image in Photoshop
2. Hold down the left mouse button on the Lasso Tool (L) icon from the Tools panel and select Polygonal Lasso Tool (L) from the popup.
3. Trace around the image you want to cut out. When you're done, the selection marquee shows up to around the image.

4. Press Ctrl + J (or command + J on Mac) to cut out the image to a new layer. Then, click on the Indicates Layer Visibility icon in front of Layer 0 to see the cut image on Layer 1.

5. Open the destination image. Both source and destination images might be opening as tabs so drag those tabs out to make them floated. After that, drag the Layer 1 from the source image to the destination image.



Reference
https://www.youtube.com/watch?v=on5MX_h8cdI
https://www.youtube.com/watch?v=n9fwiNyDHLI