First Person Animating

So recently I've had an idea for a couple of first person based animations. Both of the animations are escape based one inspired by Spelunky and the other being a castle/ death gauntlet escape. Below is a quick example I whipped up the other night with some simple platforms and jumping.

I used a cube that I moved at the same time as the camera to make sure that the person stayed at the same height throughout the animation and not bouncing up and down making it look like the "person" is growing and shrinking. 

For a first try I'm pretty happy with how this turned out even though there's more things I need to learn to make it even better.