"Design a bold and eye-catching T-shirt with a retro psychedelic vibe. Use thick, wavy 3D lettering for the main phraseâchoose expressive words with meaning or attitude (examples: 'SELL YOUR SOUL', 'SLUMP', 'FEARLESS'). Incorporate playful, doodle-style illustrationsâsunbursts, clouds, mushrooms, abstract characters, and smiley facesâin contrasting bright colors like pink, yellow, blue, and green, arranged around the text. Make sure the design pops off a solid color T-shirt (olive green, lavender, or white). Add small accent details and supporting phrases in whimsical fonts for extra personality. The overall look should be energetic, fun, and a bit surreal, mixing vintage and modern streetwear vibes." See more