Here are some links to reference pics:
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Dexam & April" by Maritza Campos (commission)
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Dexam & TinySPark" by SPark
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The Gentledragon" by Trini
Here is a little information on the character: Dexam Draconis is a Black Opal Dragon, a rare sub-species of the Gem Dragon family. He originally hails from a planet where humanoids are unheard of, and as such finds them utterly fascinating. Being of the Gem Dragon family he is naturally Psionic, though most of his powers tend to be related to randomly affecting the "luck" of those around him or to altering his own physiology: he can range in size from that of a large lizard to over 80' long from nose-horn to tail tip; has the ability to absorb alien (non-dragon) biologies for use by his own body; and even though he uses the pronoun "he", gender is something that is entirely up to "his" current whim. His species also posses innate weather-control powers, leading him to believe that members of his family have visited Earth in the past, giving rise to such legends as those of Rainbow Serpents and the Wagyl.
Like most dragons he is fascinated by shiny things (gemstones in particular), and has a driving need to hoard as much as he can. His personality is as variable and changing as the colours of his scales, ranging from mischevious to serious, although he more often tends to be easy-going, a trickster, flirtatious, humourous, and at times downright perverted (but also unfailingly polite). For a creature than can (and will) eat and digest anything (up to and including at one point a small nuclear warhead... it's better if you don't ask), he tends to be somewhat snobbish when it comes to food and drink, and considers himself to be a critical expert in the matter of all things gastronomical.