She does look like quite a big girl, looks hefty, healthy + alert. BTW, are you positive on the gender ? I ask because of the black beard + big blocky head. Females CAN have those traits but not very often. If your'e not positive can you post a pic with the tail arched up high like in this pic ? Scroll down the article :
https://www.beardeddragon.org/articles/sexing/
https://www.beardeddragon.org/articles/sexing/