I suggest you to find on the web the rule book of Mordheim and it's Expasion Lustria city of Gold
in this expasion are reported several bands (mordheim it's a band based wargame).
there the bands of the dark elves\high elves....there are no miniuature so from the descriptions and for the possible equipment you can decide the skin and the feature of the units.
those was made by the players but the there are supported by GW in the Mordheim official site and those who really know the elves history approve.
GW didn't produce all the model so there is freedom in rappresetation in the game.
than there are the role play:
doesn't cover elves so much...but it's interesting for the others factions like cultist, chaos, humans and dwarfs.
maybe in the future you will be interested.
regarding the factions I couldn't see much of the roster but there is one thing that I can say:
(maybe most of the things you aready know, in that case sorry for remind you, I say in order to show better my propose units for Tyranoc and Anar)
every elven kingdoms has a core units that are the same....the colour and simbols change, but they are the same, those unts are:
-armored archers (that are archer with light mail)
-nobility (most of the time silverhelms)
so Tyranoc has pikemans, archers, armored archers for sure.
than as you know Tyranoc it's famos for the chariots....that nobility use in the battle so instead of the silverhelms they have the simple high elves charios.
than...we are play at the end of the golden age for the elf civilasation so most of the tyranoc it's hemersed, after the cataclism it will be under water and their territory will lose most of their plains of grass.
the higher nobility of Tyranoc can be on chariots of course but maybe of chariots with 4 steeds (like it was possible in the 5th edition of warhammer add others steed from 1 to 3.
than for give more things different to this unit you can give the armour to the steeds.
you are replicated the units of the past not of the "nowadays elf army".
Like the caledor's dragon princes...right now they are a shock cavalery on steeds but during the golden period and the barbs war they were on small dragon.
(right now the ellyrion light hormen got the armour for the steeds, in the on going edition I mean), if u have more space u can easly create a new unit just with the armour for the steed even for them (Ellyrion)...just in order to increase the units number for the faction.
than I think Anar it's the most difficult faction to realize and I don't know their units, so I will just propose for what I know their kind of warfare.
they will never have pikemans and stand line troops......they should have light cavalery similar to the ellyrion's one and their really skilled rangers.
but when I read their warband in the mordheim I remeber that they have some mage (not strong like the druchii and the saphery's ones of course but it's wellknown that every elven city has some wizards and mages...
there were famous mage from Caledor, Lothern, ecc...
than there are the shadow worriors form the warband list....you may create some assault units for ambushes like two blade fight warefare
(maybe use the assassins of med2 that hide in the forest and they are few in numbers but really tought to kill...like every ones that rebels against Malekit was.
well, those are my ideas...
if I wan't clear I can write in a different way, sorry I'm not english native speaker.