Thanks for purchasing this file on GraphicRiver.net!

Below are instructions on how to change the designs to your own.

1--- Open one of the Photoshop files. You will see several colored layers in your layer panel that are labled (main door, top left window, etc.).

2--- Double-click the thumbnail of the smart object layer you want to change. This opens up a new window of the flat design. Add your design and when finished, close the 
smart object window and click "yes" when asked if you want to save.

3--- That's it! Your design has now been automatically added to the mockup with correct angles, lighting, shadows and texture. You can turn on/off the windows you don't want via the eye next to the layer.
You can also adjust the opacity of each layer if you want the posters/text to look like they are more inside the store.

If you have any issues, please comment on the file page for support!

Thanks again!