Design a large semi-truck featuring a vibrant paint job using swirling patterns of teal, magenta, and gold. The body should have a streamlined shape with chrome accents along the grille and wheel wells. Replace the large front headlights with sleeker, more modern LED lights. Add an artistic mural of abstract shapes on the sides, and make the wheels slightly larger with a multi-spoke design. Finally, ensure the truck sits lower to the ground with a custom chassis.