Step 10: Adding the cemetery shadow onto the wall
When looking for this picture make sure that it is already black and white and the background isn't too complicated.
1: Insert the picture as a new layer. Make sure it is above the house layer.
2: With the eraser tool erase all the background.
3: Change the mode of the picture to multiply.
4: Position the picture roughly where you want it. (The best effect is when the bottom of the shadow is at the point where the house and the ground join.
5: Use the Gaussian blur tool by going: GIMP tool bar > Filters > Blur > Gaussian Blur. Once you are there blur it with a radius of 3 pixels. This will blue the image slightly so it actually looks like a shadow and not like it is painted onto the wall.
6: Use the Free Select tool by going: GIMP tool box > Free Select tool. (It is the one which looks like a little lasso) With the Free Select tool select the area where the shadow over laps the joining of the house and ground.
7: Go to Gaussian blur again and blur it with a radius of 7pixels. This will make the image blur in better with the house and not have a big straight line across the bottom.