Knowing how to select parts of your Gimp documents with the help of Quick Mask might be one of the first things you should learn when starting with Gimp. Let me introduce you to the basics of Quick Mask.
A really useful feature in case you want to receive a warning notification before you use all of the mobile data available according to your mobile provider contract. It's a great way to avoid additional charges.
In the previous part of this Photoshop tutorial we made the photo look dark as night. We will now continue by adding some light to one of the windows and placing a nice looking moon into the sky.