First promotion in Arknights via the Elite system. The only character with unique artwork for Elite I is Amiya (Arknights) (post #3563886).
For the second and final promotion in the Elite system, see Elite II (Arknights). For parodies of the art used in the Elite system, see Arknights Elite Parody. For all official Arknights art obtained via the Elite system, see pool #28418.