Creating Smoke
  • Use the Rectangular Marquee tool to create a feathered (20) selection where you want the smoke.
  • Set the forground color to middle grey (808080) and the background color to white.
  • Go to Filter/Render/Clouds
  • Deselect the selection
  • Go to Filter/Blur/MotionBlur. Set the angle to 90 and the distance to 160.
  • Go to Filter/Distort/Shear and drag the line into a zigzag.
  • Go to Filter/Liquify. Use the Warp tool to shape the smoke.
  • Set the Smoke layer blending mode to Pin Light.
  • Change the Opacity to help get the effect you want.