I'd go with Hawksbill - the shape of the carapace, the serrations, and also the head shape - the head of your animal does not seem large enough to be a loggerhead, it appears to have two pairs of prefrontal scales so it cannot be a green, and, to me, the carapace seems the wrong shape to be a Kemp's or Olive Ridley. Aside from those species, I think we can quite safely discount a leatherback or flatback
If you compare the head scale pattern of your animal to this
http://commons.wikimedia.org/wiki/File:Hawksbill_turtle_on_Pom_Pom_Island.jpg then you can see the scale arrangement of a hawksbill more clearly.