As a song, it's not bad. I think there's room for the mix to be louder. IMO you should use some compression/limiting to increase the volume so the listener doesn't have to raise the volume just to hear this song and then turn it back down for the rest of their music.
Other than that, it's nice to listen to.
A side note: If you don't think the saxophone instrument you used sounds good and you don't want people to critique the sound of the saxophone, maybe don't put the word "Saxophone" in the title. As it is, you're drawing a lot of attention to it in the description.
More info about how I review music here: https://codefreq.newgrounds.com/news/post/1089806