You really can't go wrong with pixel art. It's impressive how since we transitioned beyond pixel art, art has decreased quickly and everything is a hit or a miss, or at least divisible. And gets dated quickly. But pixel art don't suffer from that. It just works right out of the box.
So, if you unsure about your art style, just go with pixel art. If you can't make a pixel art game look good, you won't manage to make another art style look good either.
So, if you unsure about your art style, just go with pixel art. If you can't make a pixel art game look good, you won't manage to make another art style look good either.