Is it possible for me as half-Asian to get an epicanthic fold? (Photos)

They are not Asian like but actually Asian. The inner aspect of an Asian eyelid can finish either with an inside or outside fold. An inside fold finishes as a medial epicanthal fold. An outside fold is an Asian eyelid that finishes in the inner corner without a medial canthal fold. It is considered a more dramatic eye. Still Asian. In studying your pictures, your upper eyelid fold is hollow. This generally reflects a loss of volume in the upper eyelid due to how the levator tendon inserts into the eyelid. In many eyes, the central part of the tendon is actually separating from the hard platform of the eyelid, the tarsus. If retracts back into the orbit and takes anterior orbital fat back with it. This can actually lead to upper eyelid ptosis which you do not exhibit in your photos. You are missing a hard crease in your upper eyelids. That means the eyelid platform skin is loose and the eyelashes are not well supported. An anchor blepharoplasty makes a single hard upper eyelid crease that supports the eyelid platform skin and the upper eyelid lashes. This surgery exposes the levator tendon which is repaired and anterior orbital fat is mobilized into the eyelid space to make the upper eyelid fold. I do not believe that you will find this type of surgery in South America.