The Heart of Stone Part 2...

Here's the first CG model of the heart of stone. I want to make 3 models: No. 1 will be a basic model. No. 2 will have few cracks on the model and No. 3 will have the broken section which reveals the fleshy insides.

Here's a few renders with some basic lighting.

I still need to add a dirt map and I want to test out a toon shader just to see how it looks for the t-shirt.