Sounds good; definitely something I can rap to (well, that is if I were a rapper. Quasi at best xD). Good chillout vibe there, but I think you should flip the mid and close-out at the end around.
The closing section would work really well to still give the break and breathing room of the midsection while providing the change in feeling, and maybe for the end (last 20 or so seconds) go alt btwn the mid and the end on set intervals while automating the gain down, but otherwise just flip the mid for the end and end for mid.
A personal suggestion, to give a bit more flavor to the mix.