The last picture of Travis' face, while in the shower, is like a rorschach test - each of us sees something different in his expression.
There is an on-line test called Mind in the Eyes, where you are shown cropped photos that reveal different people's eyes and you must choose one of four emotions that they are expressing. You can take the test here:
Reading the Mind in the Eyes
- this is based on the work of Simon Baron-Cohn and his research on empathy, and his book,
The Essential Difference: Men, Women and the Extreme Male Brain.
Anyway, I thought that the folks here who feel strongly about their interpretation of the emotion(s) Travis is showing in that last photo might enjoy taking the test.
I personally see anger/irritation in his face in that photo.
I scored a 31 out of 36 on that test, which indicates I am "very accurate" in decoding facial expressions - according to this test.