Look at how this skull isn't flat.
It's all about the shadows. And you haven't even got the basics down.
Stop what you are doing right now. Grab a pencil and a piece of paper. Learn.
Before that: Please don't post for the whole world to see.
Because there aren't much more to say about your "art" right now. At all.
Just keep practicing and if you actually like art you will push through.
If you start crying after reading this: Grow up. Life isn't handed to you on a silver platter. You have to grab life by the balls and yank as hard as you can to get anything really great out of it.