The first thing I have to say about the first sprite is that the Ace Attorney style really focuses on Anti-Aliasing.
(taken from the sprite dictionary on the site)
Your lines aren't anti-aliased so it makes it look out of style.
Also, they usually have one outline color throughout the whole sprite.
One last thing: if you're trying to convey the art style of the first game accurately, you're going to need to use a lot less colors. They only have 16 colors, and your sprite has well over 25.
(taken from the sprite dictionary on the site)
Your lines aren't anti-aliased so it makes it look out of style.
Also, they usually have one outline color throughout the whole sprite.
One last thing: if you're trying to convey the art style of the first game accurately, you're going to need to use a lot less colors. They only have 16 colors, and your sprite has well over 25.