The beginning percussion was really cool, it was sudden and started the track off with a bang.

The mixing/mastering work on the percussion isn't super, and I would have chosen different samples for both the hats and snares. They're both very under-processed and don't sound as good as they could be.

The piano underneath is a bit too basic sounding as well in my opinion, though the piano solos themselves are very nice. I think some reverb and mixing work could have worked wonders. I would throw some more in the high-end, and cut the low end out almost completely. A small amount of high-pass filter work would fix this pretty quickly.

I like the feel of the track though, I think your arrangement skills are very good. I would definitely work on sample choices though and some more investment in mixing/mastering/EQ work.

By the way, loooooooove the jazz-influenced minor notes at 3:22. Beeeautiful!

Thanks for the opinions guys

@Shikimo I still have a lot to learn in the mixing department so I think that's sort of where I'm headed next. I'll spend the next few days trying to master that (haha).
I think I also need to just get a crazy load of sample packs to give me a bit more to choose from to fix the bad sample problem.. I also liked the 3:22 bit, I felt cool playing it .

@NewPatrol Thanks for the compliments, I agree about the boomy chords.. Turned them down a little. Also I realized that you're right about the first bit in that I didn't return to the first theme before the end of the song which was maybe a bit silly of me..