Once I'd finished oohing and aahing over my lovely niece, I took your advice and kept the length to match my boots, and finished the hem with blind stitch. I've got a special blind stitch foot for my sewing machine, and it was delightfully easy to use. It took a bit of concentration, and I don't think I would attempt after a glass of wine, but I'll definitely use it for any other skirts I make, it looks really good.
I'm pretty amazed I've made a piece of clothing I'd actually *wear*. Mr pickledweasel was also impressed, and has decided this means I never have to buy any clothes ever again.
Apologies for the crappy photos - it was late, our bedroom's a mess, and mr pickledweasel is no Mario Testino. I look bizarrely lumpy, but I'm blaming mr pickledweasel's lens angle, rather than my svelte form. And the facing is peeking above the waistband because I haven't tacked it into place yet, naughty me.
I'm going to buy the Cal Patch book next payday, so hopefully I should be able to do any future sew-alongs properly, rather than some sort of market stall rip off version :) Although saying that, I am liking Sew U and am going to make the skirt again. Grown up clothes are exciting!