I'm no expert on this bread of fish but it looks to me like there is either one of two things happening..
1) Wide color variations
2) People are calling any kind of wrasse a carpenter wrasse
Is that just one elongated dorsal filament? Or are there a couple grouped together? If it is the former, I am leaning toward McCosker's wrasse and not a carpenter. If there are more than one, it is likely a Carpenter's wrasse.