Cool. I love your use of shadows and shading on the dog and I really like how well you drew the grass; it looks real. The eyes are also a very captivating part of the picture. They almost look like a really dark or dirty red. Very good job.
I've been wanting to finish a picture of a dog I used to have. He's a Rat Terrier (They are very similar in appearance sometimes, but a Rat Terrier has longer legs.)