Description
The original costume is based on the art by Gene Colan, mixing the more alien design from the Ultimate Universe's depiction of the Kree Empire, and the concept art from the Karl Manvers film thay had a more accurate yet sci-fi look on the Kree Captain uniform (pin.it/3ZmAleA ).
The iconic look, on the other hand, could be described as a more streamlined ceremonial garb of battle to be preserved for the best warriors of the Kree Empire. Aesthetically-speaking, Superman's Injustice costume in the Regime timeline was part of my reference because the trunks were made to look cool.
In terms of headgear, both draw from the Ultimate Universe as a point of reference. For the original uniform, the helmet from the Ultimate Universe gets modified to fit more as a Greco-Roman war helmet. Whereas the iconic look has the streamlined parts that cover the face, though that element could be in the form of blue highlights hen the full cowl is to be used.
The Kree Captain's Helmet:
sta.sh/0flcha4mwa9
The Iconic Cowl:
sta.sh/01u3m2wq66lx
sta.sh/0x2hsx96d4s