Design an adorable and charming t-shirt graphic showcasing various mushroom shapes in different sizes, including toadstools, oyster mushrooms, wood shrooms, and more. The background is plain white. Use soft pastel colors like reds, oranges, yellows, pinks, and greens for the background. The design should be cute and friendly, suitable for all ages. Add small details such as tiny dots or lines around each mushroom shape to give it a touch of whimsy. T-shirt vector illustration in the style of vector illustration.