I don't think you have good enough quality sounds to work with atm.
I had a quick listen to each of them, I would suggest you work on your production. Whatever tools you're using, know them inside-out, and if you find that there's something you want to do that they can't do, see what free resources there are out there that can do it.
Learn to listen, compare your stuff to what others do with similar tools and resources, learn from the differences. Listen to "real" music, out there, be it orchestral, folk, jazz, rock, electronic, opera... whatever. Always strive to improve. As you have in order to get where you are now.
Just keep going.