I love your idea of documenting whats happening! The painting is profound and it shows a sadness even as you have a mask with birds decorating it and the background flowered wallpaper. Your composition and brushwork are very appealing and your hand, situated close to your heart Is also emotional. It adds an element of mystery making the viewer see a hint more of the reason for the expression in the eyes. The flesh tones on your face and hand are very good. You didnt overwork any part of the painting, keeping every part of it consistent.
You included a lot of patterns and textures creating interest for the viewer to appreciate the different elements of the painting. The drapery in the blouse reveals that there is a body beneath it. Its a mysterious painting that makes the viewer want more information because of the mask and its also a historical one about a time and place and a very personal acknowledgement of the times. Its brilliant and you pegged it. Whatever it is!
Im really sorry about your mother. My mother had Dementia and had home hospice care too. Its really heartbreaking that you cant visit, but from experience I will assure you that she cant be in better hands than she is now. Hospice workers are proof that there are angels and they walk among us. And they are there to help families too. If they assigned you a family social worker they will help you get through this. And though it is a glimmer only her caretakers will not let her linger in sadness. Her passing will be very gentle, like my mothers was.