I just finished this in Reaper - Linux. I'm curious what you think of it and I'm open to constructive criticism.
I have some problems with mixing as I don't know where to begin with. Just did some panning, EQ (high pass filtering) and little compression ...
If you have tips how the mix can be improved, your welcome

It's a bit monotonic but that's on purpose. And I like the part from 2:40 on ...
https://soundcloud.com/lilith_93/moonchild23
Style? Synthwave?

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Synths:
Zynfusion
Tal Noisemaker
Some Alesis Drum Kit via Reaper Sampler
MVerb
Dexed & Tunefish for minor special effects
Samples taken from NASA missions