Although i'm not into Lil Uzi, I think it sounds pretty dope, i love the sounds you used. Only gripe i really have is that the panning synth throughout the song is a bit distracting. Generally when you tremolo something like that you don't wanna make it your main focus because then the rest of the instruments on the track are trying to compete with it, and it ends up muddying the mix. I think you're definitely in the right direction for the sound you want, but i'm sure if you went back, turned the panning synth down, and used some automation on the EQ it would be $$$ worthy. Never be afraid to experiment with automation, it makes your tracks more interesting and helps you avoid repetitive mixes!