Cool-toned outdoor anime watercolor portrait

Create a vertical anime-style watercolor portrait, featuring , standing outdoors against a bright summer sky. Use a close-up three-quarter view from above the chest, with the character facing left, gently holding a pink-and-white silk tree flower beside her cheek. She has long deep hair with violet highlights, long bangs, and a high ponytail flowing to the right; add a gold hair clip with the word "AI" near her temple, and wear multiple small earrings. Most of her face is covered by a centered large opaque square mask, which has a soft blue-to-gray-pink vertical gradient, covering her eyes, nose, and mouth. Dress her in a sleeveless high-neck top with soft painterly shading. Surround her with three striking clusters of silk tree flowers: a small flower held by her left hand beside her cheek, a huge blurred flower cluster in the lower-right corner, and another flowering branch in the upper-right corner. Use a slightly faded but expressive blue palette, cool white balance, creating a humid summer atmosphere, with more green tones in the shadows, strong film grain, watercolor paper texture, expressive brushstrokes, bright backlighting, soft cloud patches, and sparkling highlights. The composition should be intimate and poetic, in a 9:16 vertical ratio, with no extra text in the image except the "AI" hair clip.