Concept Peice with keyframes

The goal of the assignment was to draw the interior of a building of some sort, with a focus on lighting. I decided to make up a story before I started, so that I would have something to go off by:

The character's father is sick, and the only way to heal him is to make medicine from the leaves of a certain tree, but no one believes that it really exists. The legend of the tree is it was planted by people long ago, hundreds of thousands of years, and lives forever, as well as have magical healing power. Due to the protective seal it has surrounding it, put on by the same people, it can live forever; without it it would die and disappear forever; there is only one tree like it and it cannot reproduce. The tree is also protected by guardians, and will attack anyone who nears the tree in order to protect it.

The character decides to go and look for it anyway, and eventually finds it inside an odd, dim, cave she has never seen before. As she approaches the tree, suddenly the bark of the tree slowly rises, and all the lights in the cave turn red, signaling for the guardians to appear. The guardians turn out to be huge spiders and then chase her until she exists the cave completely.

Why spiders? Because spiders are scary as all shit, that's why. Especially if they plan on eating you...