Without clicking on the link, I'm guessing that's from around 1920ish, in the style of--oh, who's that guy, painted all the women wearing pseudo-grecian clothes in settings with classical architecture, often looking out over water, very colorful, not Leyendecker... wildly popular around the 1910s-1920s for American magazines and illustrations and very characteristic of that era. I can't think of his name. I'm guessing it's not by him because the style doesn't seem quite the same, but from the era when he was popular. I'm curious what the Civil War connection is.
Thought of his name--whew. Maxfield Parrish. Here's his most famous painting:
http://blog.chasenantiques.com/wp-content/uploads/2010/05/parrishdaybreak.jpg Columns, robes, dramatic natural landscape beyond the water in the background...
Okay, I clicked on the link in the OP. What's the Civil War connection?
Googled the painting in the OP. I was 100 years off! It's a modern painting by a Russian guy named Michael Satarov:
http://www.satarov.com/pic.php?vrub=satarov&pid=9&picid=68 Definitely in the style of the early 20th century, though.
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