Answer:
What was Roderick illness?
Roderick manifests symptoms of schizophrenia.
What are his symptoms?
therefore, he cannot wear clothes of certain textures or eat particularly flavorful foods, and his eyes are bothered by even the faintest lights.
What is Madeline illness?
Madeline suffers from a cataleptic disease.
What are her symptoms?
She experiences symptoms such as difficulty swallowing, speaking and breathing.
What are the qualities of Roderick's paintings?
The qualities of Roderick's painting is that it depicts a long rectangular tunnel/vault and that its excavation was far down without any light.