Hi Misha,

I actually think it is a rather nice and uplifting song - I don't see many problems here.

One thing you could try is to change the rhythm guitar to one that sounds a bit darker. It might compliment your voice a bit better.
But, actually, I am just writing this because you are unhappy with the sound. If I didn't know that, I would probably just have said "Good song" with no further comments.

Take care,
Will