Black is not a silhouette
The mistake amateur portraits make with black cats: rendering the coat as a flat black shape with eyes pasted on top. A real black cat has directional fur, light catching across the shoulders, faint warmth in the muzzle, and often a 'ghost tabby' shimmer of markings visible only in strong light. The portrait paints depth into what looked like a void.
The eyes do the work
Black cats tend to have eye colors that pop hardest against the coat — copper, gold, amber, yellow-green. The contrast is what makes the portrait. Watercolor amplifies the eyes against soft background washes. Library frames them as the editorial focal point. Cardinal pairs the black coat with deep red robing that turns the eyes into the only light source in the composition.
Cultural weight, paintable
Black cats carry centuries of folklore — witchcraft, luck good and bad, omens, Halloween iconography. The portrait can lean into the symbolism or sidestep it entirely. Knight and Tudor frame the black cat as noble subject. Library treats him as editorial portrait. Watercolor softens him into something gentler than the folklore suggests. The cat is your cat; the framing is your call.