Yeah, Most of what needs done Taint already said, but on uniqueness , I think at the very least you have your own sound. I have seen many artists struggle finding that about their styles. No matter what it is, painting music, dancing, etc. as a fan or just an audience, we are there to witness you, and what you bring not what you can mimic or reproduce. So just play with your uniqueness and come up with different variations. Don't forget bridges, breaks and so forth, that helps a lot with transitioning as well. That is about it, you have the most important part down as is it seems just go down the rabbit hole, poke, prod it some more, make it explode and let us taste the rainbow ( no homo) :)

Okay, so the synths at the beginning are a little muddy and distorted. I'm also not a huge fan of the kick sample you have during the first 15 seconds. It seems a little choppy during the first minute or so. There are distinct, isolated sections of music, but they don't really fit well together and there aren't many smooth transitions. The violins get drowned out by the bass a lot, and the effects are so high-pitched and harsh-sounding that they detract from the piece considerably. I'm not even sure why they were necessary. If you want to use screeching effects as transitions like at 2:03, you need to take a few steps to make it flow with the structural elements around it first. For starters, you need to Equalize those effects so they don't sound so jarring and in-your-face. I would also suggest adding some reverb and volume automations to smooth them out a bit. You could also use some crashes or sweeps on top of the effects in order to strengthen your transitory moments here. Also, the piece was a bit repetitive overall. There were some good elements of the piece, though. I liked your instruments, and I think you have a good sense of harmony. Still, you need to vary the rhythm in the melody a bit more in order for it to be engaging and catchy. The ending was also rather sudden. I think you need to work on your mixing and mastering too, but maybe it's best if you focus on nailing the more compositional elements of music-making first. I especially want you to work on your transitions, structuring, and on creating some more melodic and rhythmic variation. When you've made a new piece that you feel does those things, PM me and I'll leave you another review. Good luck, man. Hope this review helped. ;)