I aspire to make art and music as beautiful as this, but there were some gameplay quirks I found disruptive. The camera jitters in certain places and the music cuts off in others. The flight mechanic was also difficult to use vertically with multiple W keypresses and shift being required. If it were distance-based instead of time-based, it would be easier to handle the inconsistencies.
This is a contender for best visual design IMO, and with more polish and seamlessness in gameplay, it can showcase its strengths even better. Also I love games with cats.