Top Row: Protagonists of the original versions of the main games from gens one through three.
Bottom Row: Protagonists of the remake versions of those same games.
Added note: The first gen games didn’t have a girl trainer in the final, finished product, but a design of one by Ken Sugimori did still exist. She appeared in a few promotional materials, mostly only in Japan.
Does anyone else notice how Lyra has the same pose as gen 1 Red?
And how Leaf has the same pose as gen 2 Gold?