#6 – Jun Choi: S.Korean Bodybuilder by Apasionese Photography
#7 – Robbie Taylor: UK Actor, Model, Fitness Model by James Critchley
#8, #9 – Unknown
#10 – Andrew Morrill
#11 – Killian Belliard
#12 – Chris Woodward: Australian Model by Paul Freeman
#13 – Unknown model but the photographer is Antoni Azocar
#14 – Lautaro Gonzalez by Gastohn Barrios
#15 – Lautaro Gonzalez by Gastohn Barrios
#16 – Lautaro Gonzalez by Gastohn Barrios
MATTHEW'S ISLAND 
Not sure what’s going on in photo #12 – the left arm is oddly placed. Is he covering someone else?
This is Australian model CHRIS WOODWARD by photographer Paul Freeman. Paul is noted for photographing men nude in the outback region of Australia.
#1 – Alex Vanderlinden by Brady Cook
#2 – Unknown
#3 – Tyson Dayley by Studio Jenkins
#4 – Unknown
#5 – Drazen Pérez for WAPO wear
#6 – Jun Choi: S.Korean Bodybuilder by Apasionese Photography
#7 – Robbie Taylor: UK Actor, Model, Fitness Model by James Critchley
#8, #9 – Unknown
#10 – Andrew Morrill
#11 – Killian Belliard
#12 – Chris Woodward: Australian Model by Paul Freeman
#13 – Unknown model but the photographer is Antoni Azocar
#14 – Lautaro Gonzalez by Gastohn Barrios
#15 – Lautaro Gonzalez by Gastohn Barrios
#16 – Lautaro Gonzalez by Gastohn Barrios