More graphical depictions of anxiety, panic, and fear:
A realistic version of Munch's "The Scream."
It's all in the eyes.
Pretty standard stuff, but gets the message across.
This painting is by an artist named Peter Halley. It's called "Panic Room." I find it quite evocative. It looks like a closeup of a circuit board, which makes me think it's a stylized depiction of the brain. I consider the box in the middle to be the "panic room" -- the amygdala? -- and like the way it's full of bright red (the color of alarm), and is walled off from the rest of the picture (which is reminiscent of the way the panicker feels walled off from the others, from reality and normality).
I like this one, by an artist named Jan Theuninck, too. It's called "Fear." It looks like a frightened face to me -- wide eyes, mouth pursed in fear. I also like it because it reminds me of images you see in brain scans. Like this:
This is from here. It's a PET scan showing the "distribution of serotonin 5-HT1A receptors (front of brain is at top), which were reduced by about a third in the raphe (Ra) in panic disorder patients."