Green anoles often look a bit rough on the top of their noses, but this one was particularly rough and white in that area. In addition, while it has assumed brown coloration, a patch of green refused to go away. One or both of these conditions might be related to shedding, but it could be something entirely different.
Graham's Island 
The photos capture the moulting-type (dis)colourations well. I had not noticed the stripe down the spine in your previous photos of the anoles before.
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Some have them, some don’t. I don’t know whether that’s to do with what sex they are or whether they’re changing color, or their mood, or something else entirely.
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