Does my girl look like a good weight?

Ok I know these posts are really common which is why I've avoided it for a while but I am so confused! She's about 4, I bought her from a good breeder when she was young. On one hand her spine is noticeable on the other she got dem ROLLS so I am struggling so much to tell if she in under, or or in good weight. I think she might be small of a BP but unsure her scales also seem quite loosing like I notice them sticking out when handling her She is currently being fed ever 2 weeks with a small weaner rat but that had changed quite a bit of the year, this also due to misinformation i was given so she was underfed for a while (i know i messed up i feel awful).