Stress Marks or Normal Coloration?

[AuroraB4Dawn]

I am curious if my dragon is displaying stress marks or if the dark lines on his belly is normal coloration. On his beard he also is displaying dark coloration. He is just a baby that I got a few days ago so I'm assuming he is just adjusting to the environment. Also is it normal for his colors to get darker over the course of the day? His backside is normally bright orange with tinges of brown or beige, however if I come near the glass or feed him, he turns dark brown and dull in color.

 

[Bwalter]

Might just be stress, my girl when I got her was a darker color a lot of the times, they also get dark when they are basking absorbing the heat.

 

[AuroraB4Dawn]

That's what I thought, But they just looked so close to just normal patterns. I just needed to be sure to know what's normal for a new beardie.