Now for the armies and other forces...
The evil forces don't have 'leader' units, just regular and elite, whereas the good forces have regular, elite and leaders so bear that in mind.
Sauron (really like the red eye motif on the shields):
Southrons and Easterlings (for these I went with cavalry instead of elephants purely because the latter were impossible to find in a style and size that worked and I've also included the miniature ships of the
Corsairs found within one of the expansions for the game - I've used the figures from the game itself but painted them better):
Saruman (the white hand on the Uruk shields are pretty cool and I've also included the
Dunlending forces from one of the expansions but with new miniatures):
And the giant spiders of Mirkwood:
For siege weapons the evil forces use Siege Towers:
Forces of good next...