First off I would say well written! Your paragraphs are a little long, so it could benefit from being put into columns, but I also appreciate that you haven't tried to make this into a graphical weird piece. It's straight and in that there is beauty. Perhaps giving the image a border or inverting the colours would make it complete.
When it comes to story I really like it, but I'm left with a feeling that the first paragraph would be a little unfair to the players – perhaps I'm judging it too harshly. But I don't feel like I have a say as a player, I'm just left to run. Maybe that's actually a great feeling that you want? More power to you.
I'm also questioning how I escape this thing? What's the goal? Am I just stuck?
The whole coldness and blutness of this area comes across great and (having used a Howler Bear myself) I love the bear!
Overall great job.