The Original Pro Retouch action, while great, is over 5 years old. Pro Retouch 2 takes everything we've learned about portrait retouching since then, and expands on the simple skin smoothing in the original Pro Retouch with a full suite of tools. Pro Retouch 2 is a much "deeper" set in terms of its capabilities, but even if all you want is a simple, no-hassle skin smoother, PR2 has that (and it's WAY better than the original).