Darth Chronus said:

That is obviously a fan in bad fan-made costume. There are so many things wrong with it: The inaccurate collar, the button on the cuff, the Biker Scout glove, the tool pocket on the wrong arm is square, the chest box is black and blocky, lack of flap beind the shoulder on the flight suit .. and he is wielding a ANH version of the lightsaber, plus the sleeve looks kinda weird. I think that the fan is quite a bit heftier than Luke was...

Plus... Luke never wore that particular costume in ESB. He wore the Snowspeeder pilot costume, with the orange jacket on top of the flight suit. He is seen zipping up the flight suit, but before putting the jacket on, though.

The flak vest is the only part of that costume that looks good.. but Luke's actual flak vest in ESB was a little bit different.

Edit: The end of the light saber should look like that from that particular angle, but .. The real lightsaber is exactly 1.5" in diameter and the hand is out of proportion. The lightsaber should be about 30% larger to match the hand. That is also a weird grip: The optimal grip would be with the control box on the opposite side of the palm.