The recording quality and balance sounds good to me. Like Diki, I would suggest listening to some of the great singers and instrumentalist interpretations of the tune. Sing along with the recording (even if you aren’t a “singer”) This is an important part of your practice and will development your ear and phrasing. Do this a lot- the great thing is you can do this anywhere. I get some of my best practice done away from my instrument. I "practice” in the car, while taking a walk… Once you can sing along with the recording, start playing along with the recording and try to imitate the singers or instrumentalist inflections/phrasing as close as possible. You will likely have to transpose to a different key than it is written in. But that’s OK because that’s good for your ear. Use the transpose button if you need to… The important thing is to strive to get your lines more musical. Give than shape, dynamics, color, phrasing… It’s great that you can read but try to put the sheet music away so you can play more freely. I work on this sort of thing every day and have been doing so most of my life and I see no end to it.