Shading will make parts that appear farther away DARKER.
For any art work, the parts that are nearer on the artwork will appear clear while the parts that are farther away will appear faint and light. The parts that are farther away can be shaded to make them them appear darker instead of faint.
1). Create a new file
2). Draw a picture using the brush and geometric shape tools.
3). Fill the drawing with paint
4). Create another layer by importing a picture from the computer
5). Merge the layers
6). Use editing tools to create a more aesthetic picture
7). Edit the layout using selection tools
8). Add text to the layout
9). Save the file in a format you can use
If it helps I think it is John Sonsini