Research: First class

HHNNNNNGGGGGG This is gonna be something O_O, Theory texts and essay the Bane of my existent (yes over dramatic I know.)

I am meant to research into aspects of my question, looking into each one and writing about it,
Okay so: My current question (or my question as its current state:

Can I create short film using both 3D and 2D animation, to create an unsettling
underground world that dips into the uncanny valley in which my characters must
gain a key Item to advance in their goal of getting to the surface world?

Things I can look Into, in relation to my question: History of combining 2D and 3D What films use 2D and 3D why The pros and cons of using a combined medium

Using 3D to help 2D (mapping 2D over 3D)

Caves

Isolated cominities Cults Uncanny Valley

Human Fear Horror What makes the human mind NOPE