There are two levels of service-
Standard You send me your current menu and your current english version, I will correct all grammar and syntax and make sure it reads well and lets your customer know what they are ordering.
Premier I will visit your restaurant, watch your kitchen brigade as they cook your dishes and then write a full description of each of your dishes for your english menu. I will also ensure that english speaking customers will understand what you are offering in respect of courses and portion size.