The memorial looks great. If every you need a reference you only have to ask.

The memorial looks great.　 I would like to take this opportunity to thank your company and all involved for the prompt and excellent work on my family memorials, I have only good things to say about the service your company provided. Being on the other side of the Atlantic and having to do this long distance has been difficult but your company made it so easy.　 If you ever need a reference you only have to ask.  Thank you again.