I came across that one once before. It was nice that he mentioned the Asian stuff. I've found a lot of cool stuff online through Korean websites. And guys look a lot more stylish over there I have to say after comparison shopping.
I guess as a general rule, extreme skinny jeans are out, but regular skinny jeans are fine. They're like a step or two below regular fit and if you don't have giant hips I think rocking them makes your legs look longer (you don't have the sagging, roomy crotch thing going on that makes you look shorter) and plenty of guys can look very hot in them.
I do a fair amount of people watching when I'm out and about and it seems plenty of people (both male and female) wear clothes that are too big for them. Probably because they're fixated on some sort of "flaw" they're trying to cover up. But wearing really over sized stuff just makes you look frumpy at best, and just a train wreck at worst.
Vest and ties are cool. That is one way to up your clothing game into more adult fashion.
I wear t-shirts because I don't give a hoot. But they're stylish t-shirts

Also, wearing t-shirts in the winter when you can wear a jacket or cardigan or something I think totally works and downplays the whole hiding-the-chest thing.
I notice there was no mention of shoes. I'm in that sucky realm of being a size 6 in mens shoes. Talk about impossible. I can get converse, or other sneakers no problem but every killer pair of mens shoes I find usually starts at a size 8. So i look for womens shoes that looks like mens shoes (luckily there are some).
I have to point out that in the bit about exercising he mentions to shoot for 10% fat. That's really borderline. Female athletes typically have around 15% (or more). Physically fit females would have 20%. Now if you've been on T for ages and your physiology has fundamentally changed because of it, and you're still young you can get closer to the 10%. Those are are just statistical figures of course, and individuals can vary, but generally to have too little fat is unhealthy.