Is she stunted?

We got green lady at a pet store in December last year. She has remained exactly the same apart from losing her striped cap. Her eyes and cere are still the exact same as when she was a baby. Mrs Suzy Blue was born in February and has aged so so much and also at a regular pace for a female budgie. I saw another post on here where they had a budgie who was going to look like a baby forever and it just had me wondering. It's just interesting because Suzy looks so much older than her despite being like 5 months younger!

We got green lady at a pet store in December last year. She has remained exactly the same apart from losing her striped cap. Her eyes and cere are still the exact same as when she was a baby. Mrs Suzy Blue was born in February and has aged so so much and also at a regular pace for a female budgie. I saw another post on here where they had a budgie who was going to look like a baby forever and it just had me wondering. It's just interesting because Suzy looks so much older than her despite being like 5 months younger!