I can't help with facepainting locations in Epcot, but I know we've done it in the MK, MGM and AK. My DD had her face painted at 2 years old and loved it! When she cried or smeared it, we could just go to another facepainting stand and they would touch it up for free, even if they didn't offer the same design at that particular stand. It was a great service, I think we had hers fixed about three times throughout the day. One thing that helped her enjoy it was we had her face painted at a local festival a month or two before going to WDW so she was familiar with the feeling, and she of course had watched her sister have hers done in the past so it made her feel like a "big girl." The only funny thing was, after she had her face painted she insisted that I had to have mine done too!