假定你是李华，从小喜爱大熊猫(panda),一直通过有关网站(website)关注三年前在美国圣迭哥动物园出生的大熊猫苏琳和她的母亲白云。现在苏琳即将三岁。请根据以下要点给动物园工作人员写一封信：
1、 自我介绍;
2、 祝贺苏琳生日;
3、 感谢工作人员;
4、 索取苏琳三岁生日照。
注意：
1、词数100左右;
2、可以适当增加细节，以使行文连贯;
3、开头语已为你写好。
Dear Sir/Madam,
Greetings from China!
范文：
Dear Sir/ Madam,
Greetings from Chian!
Im Li Hua, a student in Sichuan. Ive been a panda lover since I was a child. About three years ago I was delighted to learn that Baiyun gave birth to her daughter Sulin and Ive been watching her grow on your website. Now shes going to be there. Id like to wish her a happy birthday and to express my thanks to you for your hard work, because of which Sulin and her parents are living a happy and healthy life in the US.
By the way, could I have a photo of Sulin taken on her third birthday? Thank you very much in advance.
Yours truly,
Li Hua