Hey VestaMusic! I’m rather new too 
I agree that the tracks doesn’t develop enough… With that I mean; Try “building” the song by using dynamics…
For example by adding a new element/instrument like kick, synth, new synth line and so forth every 4th or 8th bar… And a typical “tropical” song has a drop, and then it’s important to really seperate the part after the drop from the one before Hope that makes sense… A lot of potential though…
You’ll get those songs up soon! I believe that