Thank you for the insight, everyone. I am noticing that the tail is lined up bad, and I'll make sure to make a wire line to keep it straight in the future! :D
But his back leg isn't overshaded, it's actually too light in color (in my opinion) as I said before. His odd anatomy includes a roman nose, A short mane that cannot grow longer except near him ears, and his pelt sprouts hair like his mane (in the same color) on his back left leg. I will admit that this is not my best work, and there are many, many flaws. Also take into consideration that while the front portion of his body (mainly the upper legs, breast, and neck) have muscle, the rest of his body is mainly hollow, and so in his old age, his skin kind of lays over his bone structure. And I really need to make the neck longer, I know. o_x
Like I said, being lazy = mistakes. And I payed the price. hahha
I can see what you mean about it looking odd, though, and next time I'll consult a bone guide to make sure things look 'right', or however right he can be anyways. xD