I don't work digital (I'm not good in computer things), all my paintings are hand-painted. The two sparrows in a blossoming cherry tree are painted with acrylic on paper. But I tried here for the background to treat the acrylic paint like watercolors, because I wanted the soft effect for the delicate blossoms.
I can rely why you're so fascinated by flower photography. Flowers, like birds, are always captivating in their beauty and diversity – like everything in nature, really..