Akira looks different visually from Beauty and the Beast.  Both are (mostly) hand-drawn animation, but the fact they're stylistically different just means they're stylistically different.  And both look different from the animated DC Universe shows (Batman, Batman Beyond, Superman, Justice League).  The latter are more "primitive" in terms of the artwork, but the shows themselves are still very good.

Expecting all CGI to go for the photorealistic look is as silly as expecting all traditional animation to look the same, or all comic artists to draw the same.