I'd say it's definitely an improvement. The art style is a lot more cohesive and interesting. I certainly find it more appealing than before.
The gameplay is better, but there are still issues that are a little annoying: You can end up sliding just a bit too early and get stuck in the middle of the gaps you're meant to slide through. You can be seen by enemies who aren't even on screen in some areas and get shot at before you even know what's going on.
On the plus side: The enemy placement was well thought out and the sliding mechanic is very fun. Controls are very responsive, and the camera was much better than before. Being able to escape makes this much more engaging and escaping isn't too difficult but also not too easy. I was definitely craving more levels.