I came up with a good alt scheme for my Rohirrim, even made an article for them in the days of the old TLA
Basically I used a more vivid green on their cloaks (dark angels highlighted through goblin) and on the other cloth and shields I used a deepish blue. For the armour I painted the mail, bracers and edging to the helm and very clean silver and the leather parts of the armour I left black and painted with gloss varnish.
The overall effect was strikingly different, mainly because unless youre painting haradrim or high elves almost no-one uses blue for lotr minis I'll check later and see if I have any pictures on my laptop.
Spiney Norman, Former Standard Bearer of the Last Alliance
The King beneath the mountains,
The King of carven stone,
The Lord of silver fountains,
Shall come into his own!