I know Im late to this party, but this pic IS a mess.
the things that ARE right:
Flak vest is correctly worn for ANH. They are flipped for ESB and ROTJ.
Commpad is at least present on his left wrist but I cant tell if its upside down or not.
I see at least one Arm Tool/ Code Cylinder on his left upper arm
Suit has the correct pocket layout. Its possible it was his suit in the previous movies. One was sold at auction and its widely documented.
Whats wrong :
ERB's instead of Jacks. This particular type of ERB with the slanted/ cupped top is worn by Imperial Officers
Hose points to the right isntead of left
No Ejection harness
Flares are around his ankle (they often fall down and we have supports to hold them up)
Goggles (GOGGLES??????)
His belt is backwards meaning he was likely dressed from behind and the costume dresser had no clue. Rollerbuckle always goes to the front.
this one crops up in the Rebel Legion forums now and then, with people asking about it. Im a Rebel Legion costume judge so all the small details just stand out. Just like the show, its a mess.