This is the (outdated) Fear Class symbol from How to Train Your Dragon.
I actually just recently finished this. I'd started drawing at around two years ago, and actually colored it in not long ago. That's why I'd like to say that it looks better than the rest, but hey, I'm biased. You tell me if it looks better. I used a regular yellow marker for this.
The second neck is much thinner (oops) because I accidentally colored the inside of the line instead of the outside. My bad.