Detailed Close-Up of a Grumpy Cat with Vibrant Colors on Black Background

A characteristically grumpy, yet humorously exaggerated cat stares out from the black background. The feline's fur is richly textured, its shades meticulously detailed, providing exuberant realism. The comically grouchy expression, with furrowed brows and downturned mouth, bristles with personality, perfect for light-hearted social media content. The image is a harmonious mix of lifelike vibrance and comedic artistry.