This is the first version of the cover, the dragon form of Cruix

Here Angrod Veneanar, a main character of the First Realm saga. He must find new allies and uncover fresh strength. And if he is to stand a chance of defeating his greatest enemy, he must rediscover a master spell that’s been lost for centuries. If he doesn’t, he’s just going home—to die.
 

The second version of the cover for First Realm:Stone Dragon