Learn in this Photoshop tutorial how you can design balls on a wall just like graffiti.
Find a photo having pictured on it a brick wall of
1024x768 px and
72 dpi.

Represent several small circles on a new layer, applying the
Ellipse Tool (U) and pressing the
Shift button simultaneously. The circles’ color is
5D5D5D.

Change
Blending Mode - Normal to
Overlay on the layers and we’ll get the next picture:

Take the previous instrument and start drawing several circles more, the way we did our first circles. Their color this time is
505050.

Change again
Blending Mode - Normal to
Overlay.

Create a new layer and select again the
Ellipse Tool (U) to represent a sphere, changing on the layers the
Blending Mode - Normal to
Hue.
