Aside from using AI, it feels like everything doesn't quite fit together visually.
On the other hand, it would be nice to add a run button xD
The sprites feel different from each other, some with higher resolution than others, for example. And the animation is a bit odd between the different stations.
I'm not against using AI because, as a programmer, I feel it would be the same as using free assets, but the problem comes when the sprites don't follow the same aesthetic line between them.