The first is fine in my opinion, the 2nd just feels like we draw 1 on N pixels and stretch, I don't like it at all and find it to be cheap pixel art style, it is not crisp and clear like older games, it is just processed at a lower res it seems, you cannot even read the Extreme cold, just ... I cannot say yes to that.
The third one, errr... maybe, the picture is not enough to see how that will feel.
You have gone with one art style, you can't simply switch out to another one without reworking it, when a game does actual pixel art, it is done to be pixel art, not converted from a picture to feel like it.
Just choose what you think represents the game, not what people think they want, or what successful ones do blindly like that.