a psychedelic illustration poster for a psytrance music fesitval with vintage vibe and style art, a shining strong sun in the background with exotic big colorful amazon jungle in the bottom center of the image, the jungle should be the most colorful part of the image and stand out among the other elements, featuring retro-style figures and shapes around the image, the sides should be open and without any elements, the center top of the poster is open for text, vintage retro texture effect of old art  --style raw