Looking good. It looks identical to my 3500 High Country except for your new running boards. I have the roll-up Chevy tonneau cover installed on mine along with tinted front windows, the bug deflector, & a blacked-out Chevy logo. Working on getting the bumper wrapped with a clear bra to protect the front end; my 2011 Denali HD I traded in had a really beat-up bumper (rock chips).
Regards,
Brett