Looking for advice (Done)

Sometimes we make Sims that are very important to us and we have very specific plans for them and see them in a certain way, so I am not entirely sure if you really want suggestions or just want to discuss your choices. So below a few ideas, illustrated on one of my Sims. For formal wear, you could use this BG low bun:

https://i.imgur.com/wtFH82V.jpg

And under the spoiler I have added some alternative versions for formal, sleep and party wear. These are just some possible 2nd outfits, I think your outfits are totally fine.