I literally love the artwork (if you could tell me how it's named i'd be very grateful since i wanted this kind of art for my game but didn't know anything about shaders nor 3d so lol) and the gameplay is very very good. The only thing i can say is that i'd love the ball to go a little bit faster and the "crash" with the walls to have only a little bit more impact, like punching has.
Overall, i'd say that if this game isn't the winner or at least top 3 somebody is lying.