Trying to make a detailed vector out of flat image
Greetings,
I'm currently trying to make a flat image into a vector, make it 100% black, and keep the same detail.
There was example work as the following: 
Some of these were very detailed and had a lot that had to be taken away.
Say I'm working with this image:

I want it to look like the light bulb image, but when I trace it my result is pretty much the following with every setting:

What do I need to learn to get to the results of the first image?
