Obviously, there is a connection between the cat and the aquarium. Who would actually want to have a shark at home? Maybe the old pictures on the wall provide a clue? In any case, keeping sharks in the living room is definitely not species-appropriate.
Everything except the cat was modeled and rendered using Modo. All 3D models were textured using Substance Painter. Final image adjustments were made in Photoshop.
3D model of the shark