J.C. Leyendecker is one of my favorite artists--if you've never heard of him, you are in for a treat. (Unless you have terrible taste or just hate amazing art for some reason.) He is famous for illustrating Saturday Evening Post covers (just like Normal Rockwell, only earlier..) So when I stumbled on to this post from December 2010 on Scott Anderson's blog I was in awe. Scott was able to take some very close up photo's of some of Leyendecker's actual paintings and posted them there on his blog. I could spend hours just staring at these close-ups in admiration. Every brushstroke is perfectly exactly where it should be. Click on the images on his blog and you can view them even bigger.
And here's the link again if you missed clicking on the one above!