As always our first step is getting the required resources. For this tutorial we are going to use planemeshes with textures on them. So the only resources we need right now are textures.
Am going to use FairyTale parallax backgrounds textures, which i got from itch.io you can use any texture you want.
First of all check the resolution of the textures, Fairy-Tale texures all comes in 1920x1080 Resolution.
Now we will switch the view to top mode, so it will be easier for us to align the planemesh. Create a new planemesh with 1920 width and 1080 height and with repeat texture count of (0.99), so that it will not show any extra outcome from the textures.
Now we will apply our first texture to it which is also going to be the first layer of our parallax background. Now we will change its material to transparent alpha from solid.
Clone this planemesh as many times as your background layers.
we will clone it 6 time to make a total of 7 layers as for current parallax background.
Change textures of each planemesh according to the bacground layers.