#1. First of all, these are the only nice shoes I own, so that settles the shoe issue. This is probably more of a party dress than a formal dress but it covers everything in a conservative way.
#2. Same as prior dress, but with leggings, which are an option for any of these outfits. I prefer bare legs, and I don't own any actual grown-up stockings, but I could go buy some if you think those are required.
#3. Black sweater with plain black skirt with a little frilly edge.
#4. Same, with leggings.
#5. Same black sweater with a pinstripe black skirt with more a frilly edge.
#6. Long black dress.
#7. Same long black dress with sweater.