Nice! I'd crop a little from the left to get a stronger balance - the diagonal line would sit more closely on the left vertical third line - which i think would strengthen composition in this case.
Very cool concept (yes, it's still life alright). You filmed the textures very well. You could have used this lighting to your advantage, however. A little patience on your part might have revealed some really complex shadows, with all the ridges of the fossilized skeleton. Good spacing--way to make your subject off-center, it shows you have a good idea of spatial design.
nice find and subject....not happy with your choice of cropping and feel the composition suffers because of it. I think the more back ground flat texture you could have shown would add to it.