Right off the bat, the melody is catchy -- but would benefit from a little bit more reverb and a lot more expression; right now, it seems as though they're round about the same volume level, each note on that melody. The drums are spot-on, I guess.
The song has the feel of a pop song, but only if that lead is sung -- it gets annoying by the 1:18 mark when one realises it's been repeated a lot. It doesn't give me chance to appreciate the nice buildup going on in the instrumental, and I really mean it -- the instrumental gently eases in.
1:58 was a nice change of pace. That pad that comes in for added rhythm sounds quite nice in the whole mix.
I'm at 3:31 and I find the song itself quite repetitive; without singing or variations in the melody it feels that way to me. I found myself wondering if it was going to be the case for 6 minutes. The pad at 4:12 could've been added earlier, to build up the song, or to merely give it a gentle ending.
You seem to have gotten the mix down well. The only thing I'd recommend is to perhaps revisit your sections, see what arrangement of sections makes songs enjoyable to listen to by most people -- and perhaps see where it takes you.
3.5/5. Voted 4.