Cloverfield Monster Concept Art

Apparently the last picture, that I put up reluctantly, is concept art for the monster in Cloverfield. I've found two others that may be concept art as well. No one has questioned these at all yet and I'm still trying to find out if they're legit, but it wouldn't surprise me if they are. The design elements to each picture are similar. I really like that first one, but I'm not too keen on the other one.
The insect-like creature is suppose to be one of the smaller creatures that are attatched to the giant monster. We'll know for sure in a week at the very earliest.