Hello
I have listened to your tracks on Soundcloud.
As Ryan allready mentioned, there is something wrong in the first two tracks with timing. In track one it’s the drums that are most of the time not synced, and in the seconf track it’s the piano chords which are out of time. The third track “skeletons” is the one you should keep on working at, and make it to a final work.
You allways have to ask yourself, if there would be any reason some customer would buy your file ? WHat is the reason he exaclty chooses your track compared to others ? You also have to understand, customers here do not buy tracks to listen, but to use them in a commercial product like a video or footage etc. So, is you work up to this standarts ? I’m not talking about taste here, this is not possible to justify, but the quality of your work.
I’m sure, if you keep on working hard, there will soon be one of your tracks in the Audiojungle markeptlace 
Good luck