I love your style. It reminds me a lot of Livia Rusz drawing/painting style, which was the greatest visual delight of my childhood, I grew up with her books. I don't think there's enough of her artwork online, but some might be. I still have the books.
This is my favorite! I suppose (in my headcanon) I look at Otto not so much as a pet, but as an alien lifeform Victoria is introducing to life on the surface of Earth. And I think Otto has feelings for her, certainly of the proprietary nature, but possibly more. Yeah, I ship these two!