You have to imagine that the legions of Orcs are actually stretching away far into the distance, and this cartoon only shows a few of them. :)
I did wonder what to put on the flags the Orcs are carrying, but then I remembered this scene from the Silmarillion when Fingolfin challenges Melkor to a duel:
"Therefore Morgoth came, climbing slowly from his subterranean throne, and the rumour of his feet was like thunder underground. And he issued forth clad in black armour; and he stood before the king like a tower, iron-crowned, and his vast shield, sable unblazoned, cast a shadow over him like a stormcloud."
So there you go. The arms of Morgoth are sable, with no charges or ordinaries. So a plain black flag it is. :)
Part 61: Battle plans
Next time: Part 62: The War of the Valar
Chibis by tektek.org