Levels seemed fine for the most part. I'd probably lower the "main" synth a small bit and boost the snare a small bit. General loudness sounded OK throughout.
Great synth work man. The whole piece weaves in and out really well. TBH when the kick and bass come in after being absent for a few bars, it "feels" louder to me. Not a fan of the snare either. I'd love to hear a better snare patch. But otherwise cool track!