She is very nice!! Congratulations on her.

She is a common, or normal, BCI. She does have a lot of nice pink blushing, but there is a normal amount of black pigmentation so she is not a hypo. She could have come from a line of pastel though, although there is no way to be sure of that. Some normals just do have a nice amount of blushing.

She does look a teeny bit heavy though. What kind of feeding schedule did her previous owners have her on? I would perhaps cut back on how often she's fed - at least for a couple of months. Stick with an appropriate sized rat, but only give her one every 2 weeks and give her a chance to get a little of that fat off. Boas have very slow metabolisms so less is better for them.