mushroom vintage style minimalist with black circle background for t-shirt, sticker or merchandise.

vector mushroom nature design forest food art autumn isolated organic graphic background set mushrooms fungus cartoon vintage plant colorful natural magic abstract drawing retro psychedelic print ingredient icon vegetarian bright shiitake groovy sign cap 60s 70s white morel pattern fresh porcini amanita hippy poster vegetable wallpaper drawn logo sweatshirt oyster farming flat style t-shirt sticker merchandise minimalist black circle merchandise