That beard is flat-out great, man! The color, density, and coverage are terrific and that mustache is a winner!

What is it that your wife doesn't like? Is it the look or the feel? If it's the former she'll likely come around in time as she gets to know you as a bearded man. If is the latter, that too will improve with time and length as the beard and, especially, the mustache get a bit longer and softer.

That really is an awesome beard, sir, and the grey just makes it pop!

Cheers!
Tom


Some helpful links:
Library Central of Beard Growing


Taming the Wild Mustache
Tips for eating and drinking with a big mustache

Excess on occasion is exhilarating. It prevents moderation from acquiring the deadening effect of a habit. ~ W. Somerset Maugham
A jerk with a beard is just a bearded jerk, but a bearded gentleman is awesomeness personified. ~ Triibeard