I absolutely adore both the illustrations and the entire concept of Brendan Wenzel's imaginative and in my opinion oh so true They All Saw a Cat (as everyone, from humans to diverse animal species will by nature see and perceive a given image, in this case a cat, differently, based on both how one's eyes are physically, biologically constructed and how one emotionally and perhaps even philosophically visualises a cat, well actually anything, for that matter). And thus, some of the animals who see the cat will perceive the roaming feline as potential prey (like the fox and perhaps even the dog) while others will perceive the cat as a dangerous predator, even a potential monster (like the depiction of how the mouse sees and considers the cat, a vision straight out of a horror movie, but very apt and in my opinion realistic). Personally though, I most appreciate how the bee is illustrated as seeing the cat (as this demonstrates that insects with their very differently conceptualised and constructed eyes will see a cat, will see anything, as mostly tiny points).
However and actually, EVERY illustration of They All Saw a Cat is indeed simply superb and marvellous, and aside from being a colourful and expressive visual treat, the illustrations as a whole lend themselves very well to enlightening and perhaps even academic discussions on and about both differences of perception (that the latter are often something entirely personal and that everyone therefore also perceives, also sees differently) and that animals (form humans to worms and fleas) all have different types and styles of eyes, of visual organs, with thus different modes and manners of visualisation (biologically and physiologically). And how one is able to see is also, is itself, based on not only perception and biology/physiology but also, naturally, on one's immediate surroundings (for example, when the fish sees the cat, it sees a distortional image due to water, just like the cat later sees itself as similarly and equally distorted when it looks back at its face reflected in a pool of water). Highly recommended and not just for children either!