Good tender singing style. Strings were cool. Such a pretty song. Have you tried harmonies?
Some timing things here and there, particularly in the first minute.
Vocal oddity at about :27 on an "F" sound. Pop at 1:33, but I think it was made vocally. Borderline plosive at about 2:54.
As far as an ending... I can't pick out chords so I can't tell what key you're in. But instead of ending where you did, you might want to go to a minor 7th somewhere and then resolve to the root chord and end there. Might work.
Good job.