This is a great proof of concept. What's not to love about pinball? The color scheme is great, it really reminds me of some neo-80s futurescape. A few things I would add in further development would be some feedback when you hit the ball. Some yuice (as Josh or the Swedes would say) would go a long way, the pinball machine's noises and flashing lights are notorious. It's like a syringe of dopamine directly into your brain. A few nitpicks I have is the speed and bounciness of the ball, the position of the camera, and the pivot spot of the paddles. Speeding up the balls and adding some physics to all the bumpers and paddles would definitely make it feel more like a pinball game. Otherwise, great start, lots of potential!