The style choice is awesome and it's very gentle at the eyes: no big deals to play for long periods of time. Sound design is good, but I would add a LITTLE bit of screenshake in order to have a better feedback of impact and changing the sound on wall hit. The ball becomes faster and I don't know if it's a design choice, but after a certain point I cannot reach anymore the ball. Also, when I lose a ball, future BALLS retain the exact speed of the previous ball, and that's a problem for the previous point. It would be a very good design choice, actually, if the ball's speed keeps getting higher, but within the limits of the speed of the paddle. It would be cool add more types of blocks with different health or some power ups like multiple BALLS or a laser that destroys an entire column, but this would be a little bit of a scope creep. Overall very good: it feels satisfying AF when the ball is over the bricks and it destroys a lot of them!
OH OKAY I forgot about resetting ball's speed thanks a lot. I will do some research on how to do screen shake and try to implement it. Speed was a requirement in challenge to be higher every time ball destroys a brick. I think with the max speed i might opt for faster paddle though. I was also thinking about some powerups, but yeaah I decided I want to give more time to next game - jetpack joyride rather than sitting over this project which didn't feel that interesting to me :)