Decaying results

One of my procrastination projects at work is to tinker further with my Dinosaur corpse.

I've toned done the blood into dark tones, and smeared it around a lot more.

I also played with a possible means of creating footprints. My only hesitation is that these footprints are 2D effects I painted on with photoshop. Are they effective? They are not the final anatomy, wait on that sort of feedback.
Thoughts comments?