The concept behind what you want to do is good, but this is lacking production quality and musical sense.
In terms of production, the bass on the kicks is very heavy and is clashing with the vocals and piano. Did you sidechain your melodies to the kick so there isn't a clash? Furthermore, the compression on the percussion is not conducive to the track as a whole, there needs to be (what I think) a slightly slower attack with a faster release to give it that laid back feel you're trying to get. Also the vocals themselves don't sound post processed at all. They sound very dry and not very exciting. Put a high-pass EQ filter on them (cut out low end rumble frequencies), give some sibilance to the high end to make them pop, and add slight reverb & delay so that the vocals are more pleasant, natural, and take up more stereo room in the track.
Where musicality is concerned, unfortunately your tumbi, piano, and vocals are all out of key from one another. Even if you want it to have a laid back jazzy few things still need to be in key so that there isn't any distracting dissonance. Vocals sound like they're in F, tumbi seems like D, and the jazz piano sounds like a diminished A scale but I could be wrong. This isn't taking into account the missing post production on your tumbi and piano which prevents the track from meshing together.
If this was a first draft then solid attempt on trying to put some unique musical ideas together. Send me a PM if you want to discuss more, need any advice, or want any clarification on my comments I made above. Hope I wasn't too harsh, just trying to improve the quality of tracks that are put out by the desi production community!