Luminar AI lets you turn your ideas into reality with powerful, intelligent AI. Download the photo editor and see how you can completely transform your photos in a few clicks.
Add the cathedral image into the document by hold-clicking and dragging the image from the folder in our PC where we have saved it to the open document in photoshop.
Change this cathedral layer to overlay blending mode. Scale its size to the size needed and move it to the position where the ceiling is on the light rays.
Finally, set the opacity of this layer to about 20%.
We need to hide some parts of the cathedral image. We will give this layer a layer mask. Go to layer > layer mask > reveal all to give it a layer mask. Take brush tool (B) and choose a very soft round brush (0% hardness) set to about 15-20% opacity. With black color, stroke the brush on areas around the window, lower parts and left side of the building, and the ceiling a bit as well to mask them. The red highlighted parts are areas covered with a mask.