Standard dance beat loop. Chords are basic Cmin Eflat B Cmin or something like it. Melodies are a bit uninspired. Bass beat is just up and down eighths in octaves. Songs fade out at the end. Takk ras is definitely the best of them.
I'm not sure what advice to give. Just try to branch out more with your melodies/chord structures more, and try to avoid looping when you can. Just try 4-6 bars in one beat, switch to something different, and switch back. Insert elements/hooks/harmonies that only occur every other bar, or to accent the melody. Look into the blues scale and more complex chords. Try doing drops and periods with less instrumentation.
As far as the sounds go, I think the ones you've chosen are okay, but they could be balanced and composed better. For one, they shouldn't be all legato, try inserting some little breaks between your notes, or have some instruments with a quick percussive decay. For the drums, add a few fills and transitions here and there instead of the same beat again and again.