I have painted orchids that I have seen in bloom at orchid growers exhibits. Orchids come in thousands of different varieties.  They get their exotic appearance from evolving to resemble the moth, bee or other insect that would be available to pollinate their species.  consequently, they can be fleshy, hairy, aromatic and brightly colored in combinations that are never ending.   From my point of view, they are exotic and naturally abstract.  Orchid paintings.