I'm so very sorry! What a horrible shock.
You did everything. I'm so glad she had you and had your love and comfort.
It's so very hard to know what happened. Sudden onset pluck and mutilation, is likely internal pain and some sort of issues.... sometimes behavior and stress can lead to pluck..so
Not to defend vets attitude at all, but it's not typical to pluck then pass away. If anyone knew how serious this would be I'd sure hope they would have acted differently!
You are an amazing, and care , and did your utmost by her. Please know that's.
I'm a very limited ability painter, very limited. But if you would like , I offer to try and paint her for you. If you want me to try , you can message me a few close up pictures if her . And I will do my best