Interesting play chopping off those releases and porting a marimba synth. 0:26, I'm interesting in where you're going to go with this videogame synth, though the interplay between ears is a little much on naked sections. It probably sounds cool on a big speaker system.
0:48 section sounds great but for percussion that seems almost absent and a build up that sounded a bit awkward. I would bring down most of your instruments and/or sidechain your kick and snare. I can't really hear a snare if there is one, actually, just a clap in the right channel. It actually seems like most of your track is panned right with a slight delay to the left.
With the percussion down so low, all the energy is sucked out of the track. I'm not able to properly enjoy it.
Piano outro is super cute, with some really nice changes. I'd cut that silent tail off though.
Mix wise, this piece was very low-mid heavy, and until your choruses, there was not a lot of breath to the piece (airy highs). As such, it felt very narrow. Some things I'd like to hear more of, cymbals/hats, transition swooshes (let's face it: I'm a sucker for 'em; they just sound so good!), and percussion.
Extra half-star for smooth chord progression and clean structure, as well as adventurous approach. Definitely see some mixing and mastering tutorials for your chosen genre. They'll make up the rest of the difference.
Overall, still enjoyed the piece despite its flaws. Nice work. Thanks for coming out to NGUAC!