18th century clothing

To get my head around our fashion project, i feel i really need to understand early 18th century clothing so i don't stray too far away from it looking that time period. I think we all get an idea in our mind of what we think they look like, without the research it doesnt fit the right criteria.
This image is a good example of a typical dress from that time period, ruffled sleeves, small shoulders, figure fitting.  Typical pattern shape too, which really interests me.
I think that this image is good because it not only shows the richer people, but the outfits of those with less money (because this time period was a bit too early for middle class etc)
THis video underneath shows some modern day designers interpretations of 18th century clothing, which might give me some good ideas on how to add a modern twist into my work.
http://www.youtube.com/watch?v=eYygzf7R-lQ

I especially like vivienne west woods interpretation, it's very unique and there are areas where you really see the historical references.