Are you applying exclusively to MiM's? Is INSEAD an MiM or MBA?

I think sticking with the UK makes a lot of sense for employment as well, and not only for personal reasons. You should be well within the numbers and averages for the program. I have not been able to find LBS MiF age or experience for example but the alums they showcase are definitely more seasoned, so I am hoping you would be considered a valuable addition to the program. Also, looks like they require a few years of work experience, so that's a good fit as well. You don't want to apply where everyone is 22 years old and clueless about the real work and goes to recruit a jr. associate at the end.

I think overall you have a strong profile. There may be a bit of a positioning to make with your career path and LOR's - to show more of a growth or a direction and perhaps use an optional essay to explain the life situation/decisions if that is not present.