Retro Superhero on Rooftop at Sunset

Create a bold, retro-style illustration of an original superhero character standing heroically on a city rooftop at sunset, emphasizing dynamic poses, bright primary colors, and exaggerated comic book shading. Include a stylized emblem on the chest that is unique and not copied from any copyrighted character. Incorporate distressed textures, metallic highlights, and a retro 90s typography logo above the character reading "Sky Sentinel". Use a dramatic perspective with a slightly fisheye effect and emphasize the lighting to create a high-impact, vintage streetwear aesthetic. Background should blend orange and magenta tones with faint silhouettes of skyscrapers. Ensure the design is fully original and suitable for T-shirt printing.