I just finished my new track's break and climax and when I'm listening to the result I feel something boring in it and I don't know what's missing. I don't think the melody and the lead are bad. I tried a lot of different mixdowns but my track always sounds smothered and not clear. If I cut the low frequencies of my lead the tracks becomes really empty.
So here is the preview of my track and I hope you can help me to find what's wrong. Thanks !
https://soundcloud.com/deevibe-1/summer-heat
PS : Do not pay attention on the vocals at the start, it was just a test.

EDIT :
this is the actual state of the thing :