Not a beard between them, look more like 'obbits to me! That ARD6 guy has a funny looking axe too!
ARD4-8 were later released as WG42 Halfling Fighters in the World of Greyhawk range, along with another that was not part of the ARD series. The WG43 Wandering Adventurers pack featured a Halfling Thief which may have been ARD2, or even ARD1.
Painter:
Andrew Taylor
ARD Dwarfs / WG Halflings
ARD1 Dwarf
ARD2 Dwarf Holding Lantern
ARD3 Dwarf Holding Treasure Box
ARD4 Dwarf with Large Axe / WG42 Halfling Fighter
ARD5 Dwarf with Spear / WG42 Halfling Fighter
ARD6 Dwarf with Axe / WG42 Halfling Fighter
ARD7 Dwarf with Mattock / WG42 Halfling Fighter
ARD8 Dwarf with Bow / WG42 Halfling Fighter
WG42 Halfling Fighter with Sword