My First Digital Drawing

This is my first digital drawing, made in approx. 8 hours... (Phew!) Don't laugh at me please, I'm new in this kind of art... And don't blame the simplicity of the drawing. :P What I don't understand is how to make the lines smoother... (I hate the way my hand tremble while making the circles :( ), I understand this needs a lot of practice... Hope next time I'll make a better one! :D

Also available on my dA: [link]