I'd prefer it if each one had a unique mask, breast plate, pauldrons, cuisse/greave, shin and spear tip - As in no piece is the same for more than one. It'd also be cool if each on had different Metallic armour, let's say Metal Blue, Pearl Gold, Gunmetal and Copper.
For example, let's say Gaaki is Navy and Black, with Metal Blue armour. She uses Knights Kingdom pauldrons, Knights Kingdom greaves, Mata feet, A roborider head block as the Breast Plate and wears a Kaukau. Her spear is tipped with a Knights Kingdom Sword, all in Metallic Blue. And her legs use Piraka Shins.