Number of images? 2
Before and after images required? YES
Screenshots of images open in Photoshop or Photopea with layers showing? YES
Mr. Lindroth’s Sample Album
Photoshop Video Tutorial
Fill A Photo With More Photos Photoshop Essentials Tutorial
Here is a variation to increase contrast and view of main face:
Here is an explanation of this technique here:
Variation for Fill a Photo with Photos Pattern