My English class has been anayalzing Tess. Here are some thoughts that made us say "humm..."
1. Whenever Tess falls asleep, something negative usually happens. Example- Prince the horse dies, she gets raped by Alec
2. Alec's mansion appears perfect and flawless on the outside, but on the inside it isn't. There are icky birds and blindness on the inside
3. Tess's world has the appearance of innocence. Everything is clean, beautiful and untouched, just like she is in the beginning of the book.