Thick Beanie in 90+ degree weather that clashes loudly with a suit that you shouldn’t be pairing with any beanie in the first place. 
Suit either poorly fitted or not tailored to fit at all.
Ultra Casual suede loafers that also clash loudly
Buttoned up bottom button 
Best of all, Tim has this look that betrays that in his own he’s absolutely slaying it with this look. I’d put money on a bet that the suit is probably from some over hyped designer brand (likely Armani because … Tim).
Bottom buttoning a jacket is the fashion equivalent of not peeling the protective clear plastic off a new electronic device. I don’t give a flying fuck about fashion and even I feel like there is some degree of willfull ignorance required to do it. They should really just be sewn shut by default.
Pretty much any formal event (mostly weddings at this point) will have me walking up to dudes I’m friends with and unbuttoning their bottom buttons.
At least his pants fit, Stone looks like he took something off the clearance rack without trying it on and the waist/inseam measurements were reversed.
I wouldn’t slam on a regular bro for any of these faux pas (except the beanie) when you see them at the one event in their year that requires a suit, but I’ll slam the guy who promotes ‘high value male’ bullshit for fastening the bottom button.
Now I’m trying to decide if the ignorance is willful or not, because I could absolutely picture Tim being advised and brushing it off because he’s a rebel.