Drawing of Dilophosaurus

Here is the two-crested Dilophosaurus. As you can see, unlike its depiction in Jurassic Park, it had no neck frill, and was much larger than in the film. I consider Dilophosaurus to have an interesting jaw shape; very narrow and curved. 
I gave the crest some features, since it is thought that the crest may have been used for display or what is called "intra-species recognition", where members of the species can recognize each other.