playful forest-inspired pattern with mushrooms, leaves, and berries in red, orange, and yellow, ideal for autumn backgrounds,

holiday element decor creative celebrate backdrop flat fabric festive mushroom forest leaf autumn pattern fall nature woodland foliage red orange yellow botanical decorative seamless flora background wild harvest seasonal variety cartoon fungi whimsical autumnal plant vibrant organic rural rustic colorful countryside display design texture diverse traditional decoration country art finishstrong2024 playful forest-inspired mushrooms leaves berries ideal backgrounds botanical-themed projects