Написать письмо другу в лондон о том как друг провёл каникулы в лондоне!

Hi, my dear friend. How are you? 
I hope you loved your holidays spent in London.
Do you have a picture of Big Ben?  Do you remember, i asked about it to you.
Have you seen the palace of Queen Elizabeth 2? I think, you like it. 
Tell me more about your trip! I will wait for a your answer.
Best wishes, your best friend.