Many of these jackets look bad because they are too soft for the wearer. The jacket needs a bit more padding, a stiffer haircloth and canvas, and frankly better tailoring. Jordan Peterson's tailoring suffers from the same problem.

Compare that soft silhouette to something stiffer like this. It's not that soft tailoring is bad, but sometimes it does not look good on certain people. You have to look at the shape you are creating with the jacket, as it looks on your body.

Grey sport coats can also be very hard to wear because they look too much like suit jackets. If you get one, it's much safer to go with a tweed, as tweed has a ton of texture that distinguishes it from businesswear.

This outfit is odd partly bc it's missing the three buttons on a DB. But also DBs are easier to wear as suits, rather than sport coats. If you get a DB sport coat, make it navy.

It's also always easier to wear a tailored jacket when the jacket is darker than the pants. You can do the reverse (sometimes called "northern lights" among menswear nerds), but it requires a good eye.

Lastly, I think you can wear a DB without a tie. But for a group photo taken for an important occasion, I think it woud look better if everyone just wore a normal suit and tie. This is a simple uniform that flatters everyone, shows unity, and will make for a good photo.