Tbh, if you're using serum, there's basically no need for the other ones you used like 3X OSC. Obviously, if there's specific sounds though, like when I'll occassionally use Sakura for harps or something. Everything in this even the growls just sounds barely filtered at all. Throw a compressor on those growls, besides, they sound alot like you just took presets or something. They don't really fit. But really, throw a compressor. They clip everything out. The strings were actually really nice. That violin in the beginning was quite pretty. Also those chords sound like borderline sawtooth waves. Like you didn't add detune, or layer them at all. Reverb sounds very mono (as opposed to stereo). Otherwise, you have yourself a pretty nice track. Nice ideas.