I must say, this is a very impressive drawing!
To start off, I absolutely love the perspective used in this drawing. The cat looks like it's about to kick ya! The background adds to the activity in this. It makes the viewer seem like they're in a high up place and the cat is swinging around the ship. The shading is very good and adds more depth to the image.
Overall, this is very well done! I must say something about the 'arm' grabbing the rope. It seems a bit disproportionate and awkward. Other than that, amazing job! You have much to be proud of. :3