The intro caught me!
I love long intros, this is how trance is supposed to be.
I think your hats/clap need to be EQed more, so that they don't have bass/low mids. Maybe add a bit of reverb to them as well to give them a bit of depth.
At 0:28, I heard a VEC fill, and didn't really think it fit well in the song. It also lost some originality when I heard that.
The pads are quite nice.
The VEC fill is a bit overused in my opinion.
The bass is quite nice, I wouldn't mind hearing a bit more sub-bass from it, so that it really fills the mix.
That 2 note pattern lead got a bit loud in some areas, taking over the mix.
2:58 is really nice sounding, all the sounds blending and building!
Then I hear that FiLL AGAIN gahhh lol, sorry, ruined it for me.
At this part after the build, I almost feel there's TOO much sidechain, I would like to hear your background sounds a bit more.
K wtf happened, I can't listen to the song anymore, it just stopped loading at 4:03. Now I can't even listen again, I've reloaded it a bunch of times and now it won't play at all.
From what I have heard though, this sounds quite solid. Try and stay away from fills that are pre-made, they get rid of some originality because they're overused.
The mastering is quite good, and balance is pleasing.
Keep up the great work you two!