Demo TF2 - Resources
Quick Notes - Demo
Demoman's name is Tavish Finnegan deGroot. He is the third-tallest mercenary, with a broad-shouldered build.
In-game, he has very dark brown or black hair that is usually hidden behind a beanie, and dark brown skin with a cool undertone. His eye is brown. He has prominent cheekbones over an angular, prominent jaw, with a beard. He has narrow brows, and a large broad nose.
In the comics, he is drawn with lighter skintone reminiscent of Scout's model (though slightly duller).
Resources
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Two-Handed Sword Stances
The site itself might have handy some extra information, too, but this page specifically has info on stancing.