Really nice. Chill AF.
The only reason for not going max stars is that i feel as a personal preference that the drums gets drowned out. If the drums took more space it would help to bring more texture to the piece. Though this one might not even need drums as an ambient song it has enough changes and things happening to capture the interest of the listener without them.
Sometimes Less is More.
All I ever done for ambient music involves a lot of pads, strings and horns. So I'm probably out of my element.
Great song, keep it up :)