1. Open the image in which you want to make the effect, then place over the image that simulates the false window. Note:Preferably, the image that simulates the false window should be light tones.
2. To the image that will be the false window, put the name of “window”, then go to filters> blur> Gaussian blur, we will place it 4.5. We will change from “Normal” to “Clarify” and the opacity will be 60%
3. Duplique la capa “Ventana” Ctrl + J y cambie esa capa a “Multiplicar” y la opacidad a 30%
4. We group “Windows” and “Windows copy” in a folder (Ctrl + G) and put the name “Windows”
5. We select the folder and add “layer mask”. We select the gradient from black to white and pull a little from bottom to top, to lighten the base.
6. We add a layer of curves and modify it as we like.
7. If we want we can lower the Hue / saturation of the image, if we want some parts to retain their normal color we use a black brush and we color the parts that we want to preserve the color (in the Hue / Saturation layer).