Thank you, everyone!
Suz, I hadn't thought about the luxe factor; thanks for that observation. It's one of the things I like about the pants, actually--the drape of the lightweight wool feels luxurious.
Krissy, I think there's a generation (or two) that kind of got away from sewing. Lately it seems that younger people are getting into it again, and in different ways than what I grew up learning. They are into upcycling and "do-it-yourself" projects that are more improvisational than the tailoring-based techniques I learned to aspire to. I prefer something in-between, fairly quick projects with less structure that require less fussing with fit.
Diane, the fabric is a lightweight wool gabardine. I think it's Loro Piana. In fact, here it is.
AM, thanks for such a thoughtful response. I am thinking the pants would be more flattering if they were longer or were more tapered. I will admit my fondness for them may have more to do with the feel of them than their degree of flattery. You have a good point about this look being between creative and classic. The coat is definitely more classic, and I have a lot of rather classic shoes, too. I think in the past I've felt that having these basics in classic styles keep me somewhat grounded, as I don't feel genuine if I stray too far into arty territory. You've given me a good reminder of that impulse.
gauche, I think a belt would be cool with these pants. I thought of adding belt loops and a sash-style belt, actually, like some I saw online. And thanks for your compliment on my calves. I feel okay about them, but they can be hard to fit.