Hmm..... There a few things you need to work on.
Instrumentation is definitely up there. The instruments are very loud and not properly balanced with each other. There is also a lack of variation in the sound. Vibratos, duty cycles, arpeggios and volume variance will definitely help.
Composition wise it is very repetetive.
To get a better idea of how to proceed, I suggest that you should look at other people's modules and trying to imitate what they are doing. Making covers is also a good way to hone your music creation skills.
Don't be discouraged. Keep going and you will be fine. :)