嘉庆三年(1798)，朝廷以命题考选画师，喻兰匠心独具，布景设色无不恰合题意，以第二名录取。不久，选入内廷，任画苑供奉职。同年九月，奉谕制作乾清宫御座东西对屏，并题一联云：“万花雨露和春酒，百衲乾坤制寿衣”。皇帝赐给绸缎两匹。十月，画养心殿灯屏，兰以尧舜游首山图进献。又奉命画“豆人寸马叠嶂重峦”图，太上皇乾隆御题“画苑琼瑶”四字于其上。四年四月，画坤宁宫神像，赏给七品顶戴，并赐端砚1方、兰竹笔2支及画具等。在画苑前后绘帝容11次，宠遇优渥。

《仕女清娱图》册，清，喻兰绘，纸本，设色，每开纵17cm，横22.7cm。署款：“臣喻兰恭绘。”下钤2朱文方印，印文模糊不辨。
《仕女清娱图》册共8幅。从精美的器皿、工巧的家具、华丽的服饰可知作者表现的是富贵人家的女子。通过女子在室内品茗、吹箫、梳妆、投壶、阅书、舞剑、观鹤、自弈等行乐活动，说明了优越的生活环境不仅保障了她们衣食无忧，亦为她们提供了种种休闲条件，从而令她们具有多方的修养。
《仕女清娱图》中人物的面部轮廓以中锋行笔，淡赭勾勒，线条工细流畅，五官结构在继承传统线描的基础上参用西方的明暗法、解剖学等绘画表现形式，以赭色烘染，凹凸层次分明，富于立体效果。人物的衣纹用笔深受明代“浙派”画风的影响，线条似金钩铁画，遒劲爽利并富于方折、顿挫、疾迟变化，其显现出的方硬美与人物面部的娇美形成刚与柔的对比，衬托出女性肌肤的细腻光滑。赋彩染色浓重，青、蓝、紫、红、黄等冷暖色调于和谐的呼应中洋溢出一种纯净、典雅、安谧的情境。同时，其鲜亮明丽的色调与图册中少女们青春活泼的气息及轻松娱乐的场景相统一，从而有助于表达绘画的主题。
 

Yu Lan (1742-1809), the word rhyme vegetarian, less Shaolan, Zhejiang Tonglu to Dexiang Bi Lingzhuang (now high Xiangxiang Biling Village) people. . Qing Jiaqing years elected to the inner court, Renhua Yuan for the post. Yu Lan good at painting figures, ladies, pen thick, though not off painting school habits, but no fragile suspected. Painting Pavilion Diaogu, often refer to Western methods, Xinshou draw, all Shenyun Bi Zhi, vivid. Good chant, and the poet Yuan Mei, Ji Wu Wu Gu people known as singing and. Jiaqing five years (1800) July, fake leave, after the home at home.
Jiaqing three years (1798), the court to the proposition test selected artist, Yu Lan Jiangxinduo, set colors are all right to meaning, to the second admission. Soon, elected to the inner court, Ren painted Court for the post. In September the same year, made in the Imperial Palace of the Palace of Heavenly Purity Palace of things on the screen, and the title of a joint cloud: "million flowers and spring wine, Baina Qiankun shroud. The emperor gave the satin two. In October, painting heart temple light screen, blue to Yao and Shun tour the first mountain into the offer. And was ordered to draw "bean-inch horses overlapping peaks", the emperor Qianlong imperial title "painting Qiong Yao" four words on it. Four years in April, painting Kunning Palace statue, reward to seven items top wear, and give Duan Yan 1 side, blue bamboo pen 2 and painting and so on. Painted in the painting before and after the Royal capacity 11 times, pet Yu Yu.
 

"Ladies Qing entertainment map" book, Qing, Yu Lan painted, paper, color, each open longitudinal 17cm, horizontal 22.7cm. Department of money: "Chen Yu Lan Gong painted." Under the seal 2 Zhu Wenfang India, India does not distinguish between fuzzy.
"Ladies Qing entertainment map" a total of eight. From the exquisite utensils, clever furniture, gorgeous costumes that the performance of the wealthy people of the woman. Through the women in the room tea, flute, dressing, throwing pots, reading books, dance sword, watch crane, self-chess and other recreational activities, illustrates the superior living environment not only protect their food and clothing, but also provide them with leisure Conditions, so that they have a multi-party training.
The facial features of the figures in the "Qingxue Qingyu" are centered on the central line of the pen, the lines and the lines. The features of the facial features are based on the inheritance of the traditional line drawing. They use the western shading method, anatomy and other forms of painting. Color baking, bump structured, rich in three-dimensional effect. People's clothing pattern with the pen by the Ming Dynasty, "Zhejiang School" style of the impact of the line like a gold hook iron, fresh and full of side-fold, frustrated, late changes, the show side of the United States and the characters face the charming The formation of just and soft contrast, bring out the delicate and smooth skin of women. Fu color dyeing strong, green, blue, purple, red, yellow and other warm colors in harmony echoed in a pure, elegant, tranquil situation. At the same time, its bright and bright colors and the album young girls lively atmosphere and relaxed entertainment scene unification, which helps to express the theme of painting.