I’m an old friend of Alan’s, we were in the same Illustration class at RISD…he was by far the best in the class. As far as I know, he’s still a traditional painter. He teaches part-time at Parson’s these days.
In my opinion, Alan Reingold is an amazing artist. I have nothing else to say. Maybe I’m biased because I love Marvel, but he’s done many other drawings, paintings, etc. as well. Here’s a link to other pictures as well for anyone interested: http://www.anitagrien.com/reingold/index.html