This does look really cool when lying down the rib cage feels like having a 3 dimensional texture and actually feels like there is a cavity in your body. Quite a vivid make up~! I also like how you managed to keep the makeup on the face like bruises and all
It looks absolutely amazing. My only thought would probably be the shading because instead of looking like they are popping out it appears as if the ribs are caving in. But i think you would really only notice that if you stare at it for awhile.
Other than that, very nicely done!