A hauntingly beautiful digital painting of a witch-like woman astride a skeletal

A hauntingly beautiful digital painting of a witch-like woman astride a skeletal, winged beast in a surreal, shadowy realm. Her long, ebony hair, woven with delicate, luminescent flowers, cascades over her ornate, flowing gown that seems to shimmer with an eerie glow. The creature beneath her is a marvel of intricate bone structures, its wings outstretched as if to take flight. The backdrop is a twisted dreamscape, where gnarled trees reach out like spectral hands, and the sky is a swirling mix of deep purples and stormy grays, punctuated by faint, otherworldly lights. The atmosphere is steeped in gothic mysticism, evoking a sense of dark enchantment.