Sounds good to me....on cheap computer speakers.
I hate what some of the players and the MP3 conversion does to my music.
So if the wave sounds good, don't worry.
I could find nothing to nit pick on what I heard.
Sometimes though, the smallest EQ change does make the difference. If you are hearing something..... but can;t quite put your finger on it.... do what I do.
Stop listening to it ..... don't play it or listen for a week.... yup 7 days..... then, after 7 days, listen again. Now..... usually, your ears will be listening "new" again.... and perhaps you can pick out the nit you are hearing but can't quite nail.
this works for me. While tracking and mixing I will listen dozens if not hundreds of times to a song after I fix all the big and obvious issues....including after the mixing is done..... to listen for the nits... "almost" wrong notes, pitch not exact, timing issues, Eq, the stuff that is so close to being right but not quite, things a casual listen would miss but a professional would not miss.........I make mental notes where things are. Then I stop listening for a specific number of days. Now...when I return, I can hear clearly what the issues are and work on them.
I often spend as much time at this stage as I do on the other stages of tracking and mixing.