This is a neat concept! I I like the idea of a skateboard-esque mechanic and wall grinding through a factory could be really cool -though I do wish there were a bit more assets in the world to move around and have fun with. I personally would have preferred additional obstacles or things to jump and skate around instead of just the few platforms before the first real platforming section. I also think adding a secondary jump out of a wall grind would be a good addition, especially if the character ends up attached to the wall a bit earlier than intended, it would be nice to make a second jump to get to the platform instead of just skating under it!
I think my biggest thing though is the visual contrast. It's really hard to see anything inside the factory level since everything is of a similar shade and value, and I had to crank my laptop brightness all the way up just to make heads or tails of where I was going. I think just shifting the lighting a tiny bit in value could be a really nice option to keep the atmosphere but make it a bit more accessible.