This is a simple fanart for an amazing Sherlock story called "A City on the Head of a Pin" by Mad Maudlin. You can read it here: 10leaguesbeyond.livejournal.co… It's a short gen story that I highly recommend - it's absolutely lovely and beautiful and it has imaginary!wings but is completely canon and believable and trust me you will want to art it too!
Haha, it's not Supernatural-related. I actually haven't seen that show yet!
Hit Download Image on the right for a large wallpaper size! (1440x900px) No direct ref used, drawn in Adobe Photoshop with a Wacom tablet.