This drawing is wonderful. The blue color of the sky is great.
But the cloud should be better. The tree are okay and has great shading, same goes for the grass. Despise the fact, the background is drawn differently than how the cat was drawn... It does seem to bend in well for me.
Speaking of the cat, let's get to it. I can't really tell if she is silver or gray. DX
If she is gray, the light shading must be darker. Or she might be silver, so don't really know.
The technique is off slightly. So it has gotten 4 star.
Overall, this art is very good. This is my first critique, so yeah... It might be kinda bad.