Upvote:0
This https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/793361/Visit-guidance-v8.0ext.pdf tells you pretty much everything you need to know. A cover letter isnβt mandatory; most of what goes in it is typically included in the application itself so it just duplicates and gives the ECO yet another paper to read. However, thereβs some guidance here What details should a good cover letter contain to back up a UK Visit Visa application?
Upvote:1
The UK does not care whether you have the same last name or not. Plenty of married couples do not have the same last name.
If your wife did legally change her name on marriage but did not change her passport then it might be advisable to include your marriage certificate or another document recording the name change.
If you include a marriage certificate then wedding photos will probably not help.
You should include whatever other documents the application instructions ask for in your circumstances.