The pictures don't make it clear on what sex it it, as the tail isn't bent back enough. From what I can tell it looks male.
The whole reason for a decent scale is to monitor the weight of a reptile. It makes it easier to see if he is gaining or loosing weight or maintaining a constant weight, the last being good for adult animals. Leopard geckos are easier to see if they are too skinny or not as they store all their fat in their tails, so as long as their tails are nice and fat, they are getting enough food. Bearded dragons don't store as much fat in their tails when a healthy weight.
How often and how much per feeding do you give your guy? Also for dragons, mealworms are not good at all, superworms along with crickets and a mix salad would be better.
We are not being critical just to be mean, but to help ensure your dragon received the best care you can provide so you will have a long lived and healthy pet.
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PHLdyPayne