cool
it starts with a smooth, simple melody that slowly progresses into something quite atmospheric. your transitions are almost flawless too, meaning the flow of your progression is executed so entirely well.
my suggestion: lay some high pass automation on your drums for a few seconds, followed by a light, airy background pad. then drop around 1:30 and have a sub bass that follows the melody in pitch change. maybe add a trance-ish synth that accents your snares.
really great work