Eh. I kinda like beards but he looks more youthful without one. Could maybe do a soul patch but again my preference and the new Tenki looks good.
I honestly am still not getting a dragon vibe because he looks more like a goat... I mean the head and horns are more goaty than dragonic and he has fur instead of scales. He also doesn't have any wings (which aren't nececssarily a dragonic marker but he doesn't have plenty of others either).
I think this is largely because there are some specific elements which are ingrained into image of dragon.
When I think a dragon I think something more like this: 
Even if we go the chinese dragon route which can be depicted with more hair (I guess) I think something more like this:
Fyi: I pasted only links but it embeds the image.
Not that I mind the design, mind you. I really like it. I just sort of fail to see the dragonic elements. He isn't even snorting fire or anything. I guess you could add dragonic wings or more aggressive horns or sharp teeth to emphasis the separation from the goats if you don't want to go the scale route?
I mean if you want to. I'm perfectly happy with him being the protagonist as is even if I probably forget he is a dragon.