Of the top 6 pictures, I'm seeing Bucktooth Parrotfish-except there is no black margins on tail and anal fins. Then I think perhaps there are 2 different species, unless they are different phases of the Bucktooth, or something completely different. Fish Base's Bucktooth looks totally different.
The bottom 4 pictures, I'm really confused about. THe 3 pictures that show the white spots along the dorsal fin and white tail blotch, match a picture on Fishbase.org that says they are emerald Parrotfish, but the Reef Set's Emerald parrotfish looks nothing like that. Fishbase also has NO listing of a Yellowtail parrotfish. If you search for Yellowtail parrotfish, it directs you to the Redtail Parrotfish page. So what ARE these?