I've listened to your other tracks. You seem to be still figuring out your voice. I like that you do different styles. I think you should try different styles for your past vocals. For example, I think you should trade the styles for Love That Will Last and L-O-V-E. Love That Will Last needs less force as a production, while L-O-V-E needs power. If it Hadn't Been For Love needs a little more confidence rather than force. I understand this is just my opinion, but as an audience member, this is what I'd like to hear.
You picked the perfect showcase for this post.