macro shot of texture of a red and yellow leaf with visible cells, veins and pattern of leaf surface

defoliation fall anthocyanin aspen autumn biology botany bright carotenoid cell chlorophyll colorful detailed dried environment fallen flora foliage geometry leaf leaves lines macro maple nature october orange outdoors pattern photosynthesis red season seasonal shedding skeleton symmetry tanin texture tree vein venation vibrant warm yellow yellowed shot visible cells veins surface surface pigments