First of I would like to point out that it's hard to give a detailed review to something that isn't mixed, so I wouldn't possibly be able to point out any faults there. And neither the structure as it isn't the full thing either.
I do like the track tho, I think the melody from that saw synth is great. I would maybe try to add in some more percussive elements (or just something) into the downtempo part for the sake of variation. It's sounding good so far, but as I've said the mix is very raw.