Having trouble deciding how big your dragon should be, what kind of proportions they should have, or how they stack up against another dragon? This chart shows a number of different sizes and body types to help with that!
Note that length does not always equate to a a more physically imposing dragon. A full grown Red will almost always have greater body mass than any other brood, while a full grown Purple will tend to have the smallest mass, due to leaner bodies and longer necks and tails.