Haha, I like it. It's good in it's current state, but maybe you could clean it up a bit? I love the style though.

Cleaned up.

i like it. nice work.

Many color options here (too large for upload):

http://people.ucsc.edu/~tbabb/shirt_temp/nature-preview-anim-long.gif

By the way, the title is a Jurassic Park quote, but I imagine that if you didn't know that it might come off as a bit cheesy. If anyone can think of a better one, I'd love to hear some ideas.

Lol i like the Jurassic Park quote! Great design! Only thing id say is that the foot prints are a little chicken foot prints for me. Do you think there is a way it could be made a little more like a nasty dino print?