It don't necessarily needs to be 'Harder'...
First of all, I had big expectations of it! And I know how hard it is to create a good hardstyle track. But this sounds just like Happy hardcore.
And this is why:
Intro:
Good piano, still an bit too uplifting though. Try some lower keys, and stick an pad to it. That makes it quite worthy. Loved the arp, and sequencer but that's just the same in what you hear in HHC tracks. It aint supposed to be there in hardstyle! It is possible in some parts, but better leave it out.
Build up with an melody/clap/snare w/e. And start of slow, you want the listners to be eager to hear what's up next! Get a strong kick that's quite beefy but most importants pounding with an reeverbed (no reverse like said below) bass.
Builds:
Some of them were nice and really flowing, that's an good hardstyle element!
But those vocals saying like; 'Disco record' and 'jump jump etc' Are not classified in the hardstyle roots. Get them out and build them with snares and claps combined, while the snare get's faster.
Main:
Get away with the open hats and some of the rides. They make it more suitable for dance. Same as your bass now, I think it's pitch down/up from nexus right?
Get a deep distorted one (not too much as in Hardcore). But still quite suitable, I reccon listnen to some proffesional artists like; Ran-D, Noisecontrollers etc.
As well for the leads they're way too sawish, it only needs one super fat saw in it combined with a piercing one! And if you want it not to be rough and tough insert a simple saw combined with plucks. Perhaps with a bell too (for the effect).
Build downs (breakdown):
Nothing compareable to hardstyle to be harsh. This fits more in the dance genre. And the crowd cheering is possible but it makes tracks like this so cliché. If you know what I mean.
Overall a good track, but for my oppinion not suitable in the hardstyle genre.
If you need some teaching or want more information you can pm me for my contact on msn/aim etc.
Mixing on the other hand was well done, as it could've used some little touches here and there. But for the most part it was flawless!
5/5 9/10 - Potential worthy track, if you want to make it into (real) hardstyle.
Keep up the work, you'll get there eventually.
-Ian