You can usually find the artist pretty easily on e621.net via tags, in this case a search for "herm macro" had that pic as the 4th result.
Click the pic, yellow name = artist name, often has a source url, as well (which doesn't actually work in this case but clicking on the name gives you other pics by that artist, a random one gave me his FA page).
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http://www.furaffinity.net/user/sickyicky/
BTW, in full resolution, that pic ... certainly makes an even bigger impression. http://www.furaffinity.net/view/6713389
Base +7, Kwangsu +4, observer1980 +16
Posted on 10 November 2011, 16:34 by: dreadwing129