He doesn't say what the six needed Transformers are??

Leozack (chest) looks like Classic Jetfire
Gaihawk/Hellbat (the two arms) are Classic Starscream
Jarugar (lower torso) maybe Classics Prime?
Killbision (the right leg) looks like Energon Blight
Drillhorn (the left leg) looks like Classics Astrotrain

I would like to see if they look good separate as well as combined, but eitherway it's nice & clever work.