What is the difference ?

We have 2 males and a female that were sold to us as "Eastern".
I am looking at an add to buy 3 more females, so I have 2 females and a male in each cage, and they say they are "Texas" collared lizards.
To me, they look the same, just different colors. In fact, buy this coloring, the female that I have now looks just like these "texas" lizards. She is light cream with dark brown and tan spotting and gets orange spots when gravid.

Is there a diff? Or is it all just coloring ? Would there be any breeding / compatibility problems?