My age difference is 11 years guys (28 & 17), my wife is pretty young. That being said, it is a genuine marriage by all accounts, I have visited her 3 times already for this year and gone to Dubai, where I have an apartment all 3 times. I sent these guys 200-300 pix of us during our vacations including receipts of everything we did while on vacation. I also attached more than 5000 pages of chats, emails, skype, phone records, sms, iMessage, whatsApp, etc. Financial support receipts of more than $10 000 in less than 10 months, I dont know what criteria CIC uses to send files to interview, but i just hope that all this proof is enough for these guys.