Bass comes in near the 2 minute mark, it could use a bit prior to that if you ask me.
I would also recommend putting some effects on the drums so that they don't scream of stock drum sounds, which can often take away from the feel of a song. Everything needs to be on one level of quality if you know what I mean, and the higher that standard, the better the song will sound overall.
Melody is quite nice, very nice, relaxing. The gated string synth near the beginning sounds a bit discordant with the rest of the song.
The saw sounds used are great / A+
5/5 to get you rolling.
Please contact me if you would like to use this in a project. We can discuss the details.