I keep coming back to this shot. You almost had me the first time around, which is a very good thing, that's the idea behind camouflage, making one look twice to see if they saw what they think they saw, LOL! Was that as clear as mud? :)
I love this and if the hole was just a touch bigger and the lips were closed like the rest of them this would be a perfect camouflage. So one point off for that. :) Next, the light is just a bit blown out on the left side and middle which can work for this since it helps bring out the defining lines on the lips but the lack of light on the right make the lips look a bit blobby, if the light was more evenly distributed this would have been a 10, as it is, a 9
Good concept. Using the rules of third and the reflective lighting used on the left section of the shot brings the viewers eyes toward the real lips. Very effective.
i like this color and the contrast between the red and white, and the real lips blend in with the other lips. i also like how you included the rules of thirds.