Watch the articulations on that vocal synth. The articulations give you away. Rather than having two strong attacks on the same note, since there don't seem to be a lot of round robins or legato settings in play, I would just hold and swell the same note somewhat on where you'd want your next articulation. Throughout, this synth sounds fairly dry and naked in the mix.
Now, this is R&B, so I'm going to move it to the proper genre once this review is finished. Before I checked the genre, I was actually going to say, this initially sounds very open, all the elements of the track just out there. At points it does sound too thin with the quick decays on the instruments, and it's hard to tell where leads have been placed, volume wise -- but extended over your usual R&B song structure, this song would make a great backing beat for vocals.
Initially I didn't like the booming sub bass where it is -- the long sustain on the sub does feel like it gets in the way of some of the other instruments, and it seems to be the only bass instrument in the song. I would work for a bit of a balance between that boomy kick and a bassline in future works. For this piece, the sparse presentation works, but it won't work for every piece.
There is a little peaking issue at 0:28, as well as most places where the sub hit occurs. It's a lot louder than all other elements in the track, to the point it almost overshadows them in the mix. I think I hear some soft clipping/overdrive.
It also looks like this track is unmastered from looking at the waveform in some places. That, or it's been approached more or less like a 90's R&B track. Definitely recommend researching some mixing and mastering tutorials for your genre on YouTube, maybe study some song structure formats to help you pace yourself musically. Had lots of good ideas and motifs here, harried just a bit by seemingly not quite knowing where to go.
Overall, enjoyed your work. Thanks for coming out to NGUAC!