Steps for Photo Swapping –
The initial step is to open two photos in two different TABS on Photoshop. For, this you can just Drag a photo from your PC and drop it in the TABS section of Photoshop or you can Go to the File menu on the upper bar, then click the Open option on it (Ctrl+O) , then a new pop up option will come on the screen that will show your Hard Disk drives from where you can just choose the photos and open them in different TABS of Photoshop
In this step, we will adjust the element on the copied layer of the subject and we will remove the adjusted area from the background image. Here, the element is the copied layer of iron man’s face and the subject is captain America’s photo. To do this, at first select the layer of the element clicking (Ctrl+Layer) and then decrease its opacity to gently fit the photo or adjust it according to Captain America’s face structure.