Got eaten by a tiny worm :/ Hehe, if you could just walk a tad faster in the game, then I'd perhaps add a little bit of immersion to it. But for the time you had its a really solid entry, specially since its 3d ^^ So, great job!
There is little chance that you will be attacked by the worm, but it will never be zero ;) , as for running you can do it by holding down lshift and w to sprint