It's hard to tell from your pictures. The trouble with an oil leak is it usually spreads all over the bottom of your vehicle or around a surrounding area, making it hard to determine where the source is. Start by following the oil; you will notice some of the oil on the engine is darker and dirtier; this is the oil furthest from the leak. Follow the oil toward the cleaner area, sometimes even spotless with just a coating of light colored oil. You could also clean up all the problem areas and keep an eye on it for about a week or so to see if you can find where the source is originating from.
Hopefully some other Pelicans will chime in with input for you as well. If you need help with anything else be sure to check out our articles here:
Porsche 911 (1998-2012) Technical Articles - Porsche 996 & Porsche 997 - Pelican Parts. Good luck!