Hiccup, is that you? Where is Toothless?
No but seriously though: this How To Train Your Dragon 2 cosplay by Liui Aquino nails it. I can practically see Aquino starring in a live-action version of the movie:
There are also some shots of this cosplay as it was in-progress, in case you're curious as to how it came together or what props are involved:
You can view more of Liui Aquino's work here.