This is yet another outstanding peice of digital art. Before I get onto the main feature, I will say about the background. The dark clouds and especially the rain are both very detailed, along with the grass, I like how the blades of grass are drawn around the creature. Now, on the zombie snake, the shading is excellent, all the colours are effective, and of course, the creature itself is wonderfully drawn. I cannot think for one single second what could need improving. There is not one thing wrong with this piece of artwork. Great work, Kell, keep it up.

The lighting on the subject is really awesome, really nice source of light, it really brings out that eerie feel to it. Really nice job with the shadows, especially around the end of the tail and neck.
I adore the texture within the objects on it's head, real soft and smooth shading; I like~
The background is just amazing, overall. Especially the detail within the clouds; I could never do that. >>
I love the moon as well, nice use of darker shadows to bring out the moon's form and texture. An overall awesome picture you've created~
If you ever decide to make another picture with rain included, perhaps you could try to draw little drops of rain rebounding off of the figure's body to show how it's hitting the surface, mostly drawn in the shape of a "v". Aside from that little suggestion, I really love this picture, and I think you've done a great job~