All the other characters have distinct traits while the artist didn't really try to get Darkwings.
Understandable because unlike the other who have hair colors, certain facial structure, or gimmick Darkwings fall all on his costume.
If anything Darkwing is the opposite of that artist's rendition. He's a short, aging, guy trying to be a hero and failing at it most of the time.
Not a blond David Seville.