step 1 of 5
I started with masking everything outside the window
step 2 of 5
Then I placed the source image inside the masked area.
step 3 of 5
I took a small piece of the grass on the left side.
step 4 of 5
I masked a part of the rear view mirror and placed the grass inside. I also added some motion blur to the grass.
step 5 of 5
And since the road is curving, I warped the road on the GPS.