I really doubt he could've used a Hasegawa canopy and head. I have a Hasegawa YF-21 and it didn't come with a head. He would've had to sculpt the head himself. And the canopies for the Yamato YF-21 and the Hasegawa YF-21 are really different for eachother that I seriously doubt he could've used the canopy off the VF-22S. He must have sculpted or at least messed around with the head, and just repainted the canopy it has now. From the looks of it, it looks pretty nice. I would much rather see some better detailed pictures, though.
DUDE....GETTA NEW DIGICAM!!!