It was a nice tune... I am not sure if you wanted the keyboard part to stand on its own though. I basically hear it as block chords accompanying your voice. Are you playing your chords all in one position? (open, closed) or are you alternating back and forth throughout? I could not really tell but I got the impression that you were playing octaves or octaves and fifths in the left and then a wide open voicing (1-3-5-7-9 or 3-5-7-9-11) in the right. Jazz harmony is different than gospel harmony. I would like to hear the melody more in the actual keyboard part OR I would like to hear more movement (not necessarily chordal), in the keys. Jazz is about harmonization and reharmonization. I would be interested in hearing another take of this without you singing, but with a clear melody in the right hand and a good left hand accompaniment coming from the left. It will be a different sort of 'left brain, right brain' thinking for you...
Good luck!