He asked people to make it cooler, so I tried. I applied some basic mixing, reverb and a limiter to prevent clipping.
@Coldie Blood: notice how I sent the output of different synths and samples to different mixer channels. This gives you more control over the volumes and effects of different sounds.
Also, I added reverb effects to most of the channels. Reverb (and echo/delay) make all the difference between sounding "dry" and getting a full sound that seems to fill some space. I didn't spend long adjusting the knobs, but I hope you get the basic idea.
Finally, I added a Limiter to the master channel. This prevents clipping the mix (i.e. making the sound too loud, flattening off the peaks), which creates artifacts in the sound and is considered unprofessional. If you want clipping to get a distortion effect, use a Clip effect like the SEGuitar and Erazzor presets for TripleOscillator do.