This is model of my dad; or for example, my future job!..
Actually, again, a very fresh idea of model and very creative job, can't wait to see your other models in release, that you posted on your media page. 5/5
UPD 1: Maybe he should have a little bit more of animations? Like Spell animation,for example, but this is only on your taste.
UPD 2: And, seems, like he have a little flame gun, rather than a weld gun, but i think it too hard to show a smoke and sparks on the welding target in wc3. Maybe only with particle emmiter?
And sorry, i did not want to be a rude on you, just a little thoughts on this model. =)