Dimensional Key in a Watercolor Treehouse

Watercolor illustration of a cozy treehouse perched high in a leafy canopy. A dimensional key, ornate brass with rune engravings, floats above a wooden desk, glowing softly. Ribbons of light extend from the key and bend reality, opening three tiny portals: a misty canyon, a starry ocean night, and a coral reef. The treehouse interior is warm and inviting—rope ladder, jars, books, potted ferns, a rain-speckled window, and string lights—while outside the leaves shimmer in a gentle breeze. Use loose wet-on-wet watercolor washes, pale greens, warm ambers, and subtle blues, with subtle bleed and paper texture to emphasize dreamlike dimension.