It's very well put together
...however, I'm afraid the concept has been done already by Pendulum on their track "Masochist". Starts with a dramatic bongo-piano march overlaid with an announcer voice talking about what can be amounted to being afraid while on safari, when all of a sudden, yep...lion/beast roar and the song begins.
Your strong points are production skill, however, this sounded very clear and the EQ was right where it needed to be. All the elements where clear and bright, 3-dimensional.
Perhaps it was a coincidence, but a more original concept it needed.