How To Inject A Caricature With Steroids

A caricature of baseball player Barry Bonds created entirely in Photoshop. Scroll
down for the step-by-step sequence.The original photo:

I used the Pen tool to create a clipping path and deleted the background:I used the Liquify filter to “inject steroids” and add a scowl. Then I used the Clone
tool to smooth out the “stretch marks” left by the Liquify filter.I applied the Underpainting filter to give the photo the look of an illustration, then
used a couple of adjustment layers to brighten the image and boost the contrast.To give the image a more colorful background I used this beautiful photo taken by
Liz Bogus of Atlanta, GA. I found the photo on Stock.XCHNG.I selected a portion of the crowd, pasted it into the Bonds image, and applied a
Gaussian Blur for the final result.