It’s too repetitive, and the mix sounds harsh in the higher frequencies to me.
Totally agree with @FOXYAudio …
In addition, I find this flute very sharp,
Try to make a transparent sound. Find a whistle more natural. Think about the development of the melody. Views frequency balance and mastering . And most importantly - NEVER GIVE UP
Try to add a bit variety on it. It seems too annoying. All the best and good lock!