To make matters worse, in the stall behind Mai Mingle, from behind the half-open door, another back of a head was "watching" her.
One in front and one behind, the two figures seen from behind were like mirror images, sandwiching Mai Mingle between them.
"It's a bit of a stretch... but based on the ad copy, I wondered, what if the reflection that was erased from the picture was different from reality? One is a toast, the other is drinking alone.
"Why erase the reflection? Because if it were kept, you could just look at it to know which was the toast and which was the solo drink. Now, through some technique, most of the reflection has been erased, leaving only one difference—the third hand holding the glass.
"That way, anyone looking at the picture wouldn't know whether the model in the actual photoshoot was toasting someone or drinking alone."
In other words, you couldn't tell the reflection from reality. Once she reached that step, the rest was easy to deduce.
