Man..

You guys have flow, and your sound is half decent. There's a problem though, your hook sounds way too thin.

Also, you have that 1 sound in your beat, right before you do that hook that sounds like you're using the same synth as T-Pain and Flow Rida's "Low". I'd recommend changing up that synth to a slightly different sound because I'm pretty sure most people would associate that sound with that song, but it's your call.