Pardon me for being blunt, but these are just...terrible. It looks like you just used the brush + fill tools in MS Paint. I can't think of anything to say except attend a proper art class.
Also, what's worse than bad artwork is an artist justifying his bad artwork as his "own style". To produce good art, knowledge and usage of shading is absolutely essential, no way around it.
And next time, make your images more easily available for viewing. You're the one who wants us to see your art, we (the viewers) shouldn't have to do something as unnecessary as PMing you for your account password. Why not just post it here? Or better yet, why not just give us direct links to your images? Food for thought.