Undyne's design is so dynamic—all that spiky armor and wild red hair makes her a blast to draw! First, I sketch her basic proportions lightly with a pencil, focusing on her triangular, fish-like shape. Her head is angular, with sharp cheekbones and a strong jawline. Then, I block out her iconic armor, paying attention to the asymmetrical shoulder pad and the jagged edges. Her ponytail flows upward like flames, so I use loose, energetic strokes to capture its movement.
Once the rough sketch feels right, I refine the lines, adding details like the scales on her arms and the crevices in her armor. Inking comes next—I love using a thin liner for clean edges but switch to a brush pen for bold, dramatic shadows. Coloring is where she really pops: vibrant teal for her skin, fiery red for the hair, and metallic silver for the armor. A final touch? Glowing yellow eyes with that determined glare. Undyne’s intensity shines through when you emphasize her expressions—I always imagine her mid-battle cry!