I thought it was VERY strange at first, since in the UK "glamour shot" is a euphemism for "topless." "Glamour models" are the ones that appear on Page Three and in the kind of calendars they put up in garages. But I guess you meant glamour in the sense of made-up and wearing bling?
Around these parts (US), it's probably something w/ make-up, nice hair-do, not necessarily bling, but w/ some of the nice touches like air-brushing out any blemishes, soft-focus and such.
I received a photo of my grandfather from my aunt (mother's sister, this being my maternal grandfather) in a nice frame--but considering he turned 90 this month, there's not likely to be a lot of other pictures of him, so I'm glad to have a really nice one from his healthier days.
I've given a family shot to my parents (we had pictures done for a church directory), and received a shot of them from when *their* church did a church directory (we live 900 miles apart). So, I don't think it's an odd gift in that degree of relationship
... unless there's something odd in the relationship