Help me make a hand-painted watercolor style Martini cocktail poster, appearance: served in a classic Martini glass, the liquid is clear and bright, the liquid is clear and bright, and the cup is decorated with a string of olives, which looks exquisite and advanced. Hand-painted watercolor effect is obvious, must be hand-painted watercolor effect, must be hand-painted watercolor effect, clear details, high color saturation, the background is white, --ar 2:3 --v 6.1

帮助我制作一张手绘水彩风格的马提尼鸡尾酒海报，外观：盛在经典的马提尼杯中，液体清澈明亮，杯子装饰着一串橄榄，看起来精致高档。手绘水彩效果明显，必须是手绘水彩效果，必须是手绘水彩效果，细节清晰，色彩饱和度高，背景为白色。