Horn assembly - Horn goes in from the bottom.

Chest assembly, middle front plate goes in first.
Super glue is your friend.
Original pieces from EVA-00 required for the rest of the body.
Test printed a full figure in a while (100% scale):


I don't have green filament so I used paint for those pieces.
added a dab of yellow on the eyes, printed in black, not optional imo.
Optional paint:
green on upper arms
green on triangle on shins
green and black details on shoulders
green and black details on chest
green details on lower jaw
green details on head
The author remixed this model.
new head.
new chest.
new shoulders.