Hey there, I like that.
Nice sounding drum samples. May I ask what sample pack that is?
I think the overall balances are good. Everything is clearly audible. I think the kick could have some more low end and the bass guitar maybe less. The vocals are very up front. For more of a rock-approach, maybe the lead vocals a tad quieter with a touch of saturation and overall more compression on the master - if a rock approach is indeed intended.
From a production point, I think some (more) vocal harmonies could have been a nice addition. She has a nice voice that sounds like it stacks well.
This song would make a great mixoff though, don't you think?