Nice steady shading, especially on the fur. I like how you used the lighting to differentiate different areas from each other. The colors contrast well against one another, too.

The proportions of his limbs and head compared to the rest of his body are a bit off to me, but not so much that they throw off the picture as a whole. Anthropomorphic characters can be rendered a whole manner of ways, so I may be looking this as how I would have done it.

Overall, a nice semi-realistic take on Angus.