Design a wicked dark grunge/mechanic style t-shirt featuring a skeleton driving an old beat-up vintage harley davidson surrounded by flames and a rugged, intense atmosphere. The skeleton should have a large, weathered beard and a tough, rebellious appearance. The truck should look like an old working machine with worn metal, rust, heavy-duty parts, and a battle-tested mechanical feel. The background should be filled with mechanic-inspired details such as a garage environment, worn tools, engine parts, gears, wrenches, bolts, welding sparks, and industrial textures integrated into the artwork. The overall scene should feel like an old-school mechanic shop mixed with a dark, gritty automotive lifestyle aesthetic. The design should include the main text "LAST BOLT STANDING" in large, bold, distressed lettering as the dominant focal point. Directly below the main title, include the subtext "TOO STUBBORN TO QUIT" in a complementary rugged font style. Ensure all text is fully visible, clearly readable, and not cut off. Create a dark, premium apparel design with a rebellious mechanic culture feel. Use detailed illustration, heavy linework, distressed textures, weathered metal effects, and dramatic fire elements. Avoid cartoon styling and make the artwork feel authentic, aggressive, and high quality. Use a limited 2-3 tone faded color palette with deep blacks, charcoal, worn steel grays, rust tones, and desaturated orange/red flames. Design the artwork on a transparent background Voir plus