This covers Macedonians, Seleucids, Ptolomaics etc. The core of my army is Seleucid and the photos reflect this.
All figures painted by Ian Galley unless otherwise noted.
Macedonian Pike Phalanx
The core of any Macedonian army was the Pike Phalanx. Most Macedonian shields were covered in bronze but elite troops often had silver shields. White shields also appeared. According to Head (1982):
- Argyraspides = Silver shields
- Chalkaspides = Bronze shields
- Leukaspides = White shields
Ian has the helmets either silver or bronze. However I believe that historically Macedonian helmets were painted bright colours.
We know of a few shield designs from the Macedonian Wars. Some styles may have been favoured by certain kingdoms or, more likely, with our limited evidence we know that some kingdoms used them but that doesn’t rule out the possibility that others did as well. I believe you can pick what you want.
Ian gave all his pikemen a “Seleucid” style pattern from VVV. He gave all the silver shields a red pattern.

Macedonian Phalanx: Silver Shields (Argyraspides) with Seleucid Shield Design
Ian gave the bronze shields the same “Seleucid” shield pattern from VVV but in this case Ian varied the colours.

Macedonian Phalanx: Bronze Shields (Chalkaspides) with Seleucid Shield Design
I followed Ian’s lead with my white shields: shield pattern from VVV (in this case an antigonid pattern I believe) and various colours as they are not an elite unit. Some of my white shields have trousers indicating the men had an eastern origin. That is just an accident of my purchasing history and shouldn’t be taken as indicating historical precedent.

Macedonian Phalanx: White Shields (Leukaspides) with Antigonid Shield Design
Unknown painter, although I did the shields and pikes.
Other heavy infantry
The Thurophoroi were mercenaries.

Thurophoroi
After a couple of wallopings by the Romans the Seleucids rearmed half their silver shields in the Roman style. Ian has interpreted this as meaning they adopted Roman colours. So both the silver shield and purple tunic have turned red. I am unconvinced about this. Pilum and long shield, sure, that is being Roman armed but I see no reason why they would have abandoned their tradition colour schemes.

Argyraspides armed in Roman Style
Macedonian Cavalry
Agema
The Seleucid Agema were equipped like the earlier Companions and Xystophoroi but had a partially armoured horse.

Seleucid Agema

Seleucid Agema (back)
Cataphracts
After fighting the Parthians in the east the Seleucids adopted heavy armour for most of their cavalry. Bronze scale for the man and iron mail for the horse.

Seleucid Cataphracts

Seleucid Cataphracts (back)
Asian Troops
Just like the earlier Persian empire, the eastern successor states used Asian troops, particularly for the lights.

Asian Light Infantry Slingers

Asian Light Infantry Archers

Asian Light Horse with Javelin and Shield

Asian Horse Archers
Other Troops
Scythed Chariots

Scythed Chariots
Camels

Arab Camelry
References
Head, D. (1982). Armies of the Macedonian and Punic wars 359 BC to 146 BC. Wargames Research Group.