I recently got a few of these add-on packs, so I thought I'd add a few more thoughts now I have them in my hands.
The set comprises an archer/scout with cloak and hood, and two infantrymen with metal helmets. However the parts can be arranged in several ways, this is just my interpretation.
The archer has a cloak-mounted quiver and y-fronts belt clip holding a dagger, plus a bow. The set included three shields; two round, green with celtic knotwork, very suitable for leaders, light infantry, and one of the teardrop shape with a gree dragon face. This latter appears nowhere else in the Dragon Knights theme (as far as I can see), and it's really the odd one out, as the Archer doesn't require a shield and couldn't use one while firing his bow anyway. It could prove useful for a specific unit.
The figure with a metal coif for hair has the closed-face helm which is usually associated with the Red Dragon Knights. I'm not clear why this figure has been supplied with the wrong sort of helmet - at least until you look at the "Three Red Dragon Knights" add-on pack. He also has a Roman Legionary belt which just about fits his fantasy dagger, but I'd have preferred a normal swordbelt.
The third figure has an open-faced, and carries his weapons on his back. The black clip can be used to hold anything, and is very useful.
A good set for customising and beefing up your Green Dragon armies, but I'd have preferred the 30 20 3262 Dragon helmet instead of the 30 20 2212 helmet.
The comparative 7975 Red Dragon Knights group is far worse however, with two "wrong" helmets which lands me to think they're just getting rid of some old stock. Using the 30 20 2212 helmet from 7973 for one of these guys solves half the problem, but if I were adding these groups to my armies I'd want to order several of each type of correct helmet, and when I next put in a direct order thse will be on my lsit.