abstract appearance artificial artistic artwork backgrounds coloring colors colouring colours crater crater-like dark image imaginary imagination imaginative kernel large large kernel large nut make-believe moon-surface simulation moonscape-like nut representation Somber sombre surface annual bloom bright cluster composite flower flora florets flower helianthus annuus inflorescence kernels large head pattern petals popular seeds spiral spiralling florets sunflower widespread yellow bee composite-flower helianthus-annuus insect large-head spiraling-florets bud dwarf-sunflower flowers green Helianthus light plant plants radiant spiralling-florets sunflowers sunlight sunny sunshine unopened brown gold golden