I did a lot of different sketches, before I finally picked up the word Light and had the idea of light bulb.  

This is how it turned out, when I placed the anchor points.

I still find some parts a little bit crooked, but couldn't achieve better result. 

Now it will take hours and hours of practice. 

And this is the final image with the light bulb.

Thank you, the class was helpful and easy to follow!