I thought they worked well with SUO's Challenge #173: 'All that's Feminine': feminine without being too 'girly'.
My husband said he 'loved' the resulting card (I was pretty surprised since he's never previously expressed an opinion about a card!) which is good, because he'll be giving it to his own mum in a couple of weeks.
Made using Stampin' Up products as follows:
Paper: Sahara Sand, Whisper White (I also used some watercolour paper left over from my daughter's school days)
Ink: Sahara Sand, Island Indigo, Sweet Sugarplum, Rich Razzleberry
Stitched Shape Framelits and Bloomin' Heart Thinlits and Thoughtful Banners
Some little diamantes (I think they're Stampin' Up but not 100% sure because I've lost the packet...)