A single glance isn't sufficient enough to take in the true identity of El Espia Wine packaging. The naked eye can discern disguised elements of the graphic design, but you'll want to take a longer look. The pair of wine bottles might first appear to feature a plain white or a plain black label; however, there is more detail present than that.
Some subtle texturing to the stickers helps to illustrate curtains and blinds, and in both cases, you'll see that someone is behind them peering through. The slivers of faces are certainly inside of the house, but you have to wonder at what they're watching outside. The spy-themed El Espia Wine packaging is paired with a magnifying glass, but you may want a mirror too; the back label has been printed in backwards text.