I love exaggerating. If something is soft, make it even softer. If something is hard, make it even sharper. For this one, I made the panther extremely dark. Even when I started shading it, I darkened the values at the end. Our brains love contrast. It provides stimulation for us. I also exaggerated the darkness of the panther against the white of the background. Contrast and stimulation will help make a piece pop and be more memorable.