There are really great photos of Kiss with the new tour. We can see how the band members have subtly changed over the years. For close up photos of Kiss as they are right now, go to link
and check out the photos in their slide show. You can compare the photos to how Gene and Paul looked from day one, and see that even though they wear the same make up, they look different with it than they did when they first started out. You can see there has been a change behind the masks, so to speak.
Check out the photos and see if you can tell a difference. Especially the fans who were the Kiss fans from the beginning.