Sounds cool, I think it could be louder (I had to turn my laptop speakers all the way up). The song was good but could really be polished some more. May just be me expecting a perfectly harmonized solo a la Brian May as you mentioned, but I definitely get that jazz feel. If you don't mind me asking, what intervals did you harmonize on? Or did you just harmonize by ear?
I guess it could be louder, I'll remember to turn up the master nest time. A lot of the harmonies are just 3rds and 5ths in lower octaves, but there is some 7ths and 6ths as well depending on the chord beneath.