First mix/master in REAPER: Hip-hop/???

[radiationofthenation]

Greetings, everyone,
I am a fresh user of REAPER and I'd like to share with you my first mix and master done using REAPER, and using all free VST FX and instruments (except for the NI Battery 808 or 909s or whatever I used and other samples), as well as the stock REAPER and JS FX.
Also my first time mixing with a subwoofer, as well as mixing on a set of passive sony home speakers that I just started using (that are actually pretty clean sounding and good quality).
...And I'm more of a metal/punk person, I don't really make or listen to much electronic music. I'd appreciate any feedback/thoughts/criticism on anything (arrangement, mixing, sub levels, the lame riser attempt, etc haha)

Cheers!

https://soundcloud.com/irradiatedaudio/f-yeah