I'm nodding along with much of the excellent guidance on this thread! Fabbers are sooooo fab!!!
LJP, my pleasure, and two complete outfits are easier to pull together than a small capsule. Over time, you can build onto that part of your wardrobe, if you like. Irina, Janet, Suz, Carla and Sal have successfully done just that in the time that they have been on this forum. We saw it happen!
I suggested trousers because you're not as much of a dress or skirt person. Not black, and YES to metallic shoes. Any metallic. I think you wear it all! I'd keep them closed if your're after one pair. More versatile. Sandals might be your preference, but they are not year-round-shoes. (As Suz, mentioned).
My own dressy capsule is curated, and there are lots of modern classics. Simply because I don't tire of them, and I enjoy wearing them! I've had some of the items for 13 years! The gold shoes, the faux fur capelet, navy tulle skirt, short lace dress, jumpsuit, and cream Fulra are old! I feel great in them, they are gorgeous quality, so I continue wearing them with a happy heart. I also dress many items up and down - wear them with jeans and more casual items - and throughout the year. Lots of mix and match options.
I added the gold cabled polo sweater and cream lined trousers this year.
I find trouser suits very useful! Dress them up and down, and insulating. I can style them with many tops. I have two - burgundy and brown.
I also got every item on sale, and many off-season. Far less pressure that way, and cost-effective.
Anyway, didn't mean to write another novel! Hope this was helpful in some way
And your "cream asymmetric zip-up-vest-thingie" sounds like a great start to your dressy outfits!