This is some information about portrait paintings from The Met Museum. It’s loaded with links to paintings.
British Library has a few pages about food culture by the century, and it even briefly talks about power structures and how they influence food culture!
History Extra has a longish article about fashion in 17th century London, but it’s worth the read! The clothing is about as lacy and poofy as you’re imagining.
There’s lots of info on the web about culture throughout history.