In the intro section, the singing could be more even, and perhaps some compression could help (but I think the performance of the vocal is the main issue). Some notes are barely heard, like for example the word "you" at 0:15. Sounds like you may lack some confidence in your vocal. If needed, practice the lines a bit more before recording. Also, consider the potential benefit from "comping" several vocal takes together...
https://www.cakewalk.com/Documentation?product=SONAR%20X3&language=3&help=Arranging.41.html Around 1:30, I'd maybe back off a tiny bit on the background vocal, relative to the lead vocal. In general, my personal preference is to EQ some of the bottom end out of background vocals, and add more top end, making them more "airy", and less intrusive. But maybe what you have is already perfect, depending on what you prefer.
I really like the wet guitar solo section, although I could stand to hear a little more of the drums in there.
All in all, very nicely done!