Great feeling of SIZE here. Really gives you the sense of, "Holy S---!!" Good job showing the sense of strain in his arm and back as he's getting ready to lob the bomb. (The spark on the fuse is great! )
I think that is the best dragon I've ever seen. I mean it's not over the top with scales and bump and things, just right, but gets the big bad dragon message across quite clearly. Love the lighting in the mouth and that tongue! Wow, really cool.