No, there isn't. Seth, you should really evaluate a sprite fully before saying how good it is. The sprite itself is unoriginal and has no shading whatsoever. In order to shade well, you need to identify a light source, and then shade from there. Most official sprites have 3-4 tones of each color. Also, the sprite should face at an angle, not completely sideways. However, don't make the sprite facing straight on. So, I guess it's mediocre for a first scratch. Keep listening to advice from experienced spriters, and don't value all the 'this is amazing, you're one of the best spriters ever' as an accurate assesment. Keep it up! I'm sure that you'll improve.
Oh, and by the way, number ratings aren't allowed, so you should remove that from your first post.