Are thos black Mctavish?
It's the opposite. McAs are considered more formal in most occasions. Most will advise against wearing them with jeans and chinos, but I think if you may be able to get away with it if they are walnut McAs, nice navy sport coat and dress shirt. Even with that look, i would much prefer the Walnut player shoes over McAs.
Not quite the case. While I agree they're approximately equally formal, a wingtip is "technically" less formal before it's a full brogue instead of just a half.
As for closed lacing with jeans/chinos, that's really up to you. It's "technically" not advised, but I personally don't follow that rule.
I know you have posted pics of these before but would you mind throwing another one up? I would really like to see the brown shell strand with medium transparent edge trim