Augh, I agree, Granny Smith is AWESOME! I've always liked her, but the most recent episode just showed how epic she is. I love your drawing.. She looks so cute here. I and I love how Zap Apples look; they're always amazing.
You know, the episode settled that either 1) ponies live for hundreds of years ("Ponyville was started by earth ponies, so for hundreds of years they didn't need magic to wrap up winter." Twilight, Winter Wrap Up) or 2) Granny Smith has lived for hundreds of years or 3) Granny Smith is high as hell.