Oh waltzing! That's lovely. Your instrument choice is perfect and the overall mixing is pretty balanced. I feel that the musicality of it could be worked on more. It is akin to a waltz mood, but it would fall more into the flow if there was a contrasting theme to make us want the return of the original theme brought by the flute. Modulating upwards does help to build up energy, but hearing that same main theme so many times becomes tiresome. In the time between the building up and right before the end where it slows down, I think the injection of contrasting material could work very well. I also think I heard the rhythms weren't completely in-sync with each other, so it felt like instruments were lagging behind each other. Aside from that, you did a pretty nice job. I'm biased towards music that waltzes, but I feel there's not too much of it that goes on, or at least cinematic types like this. Good work!