The drastic change in clothing style during the Qing dynasty is mostly attributed to the Queue Order which forced Chinese men to adopt the Manchurian hair style and officials to wear Manchu clothing. This was one of the few Manchu customs that were imposed on the general population. However, it is notable that the Manchu did in term heavily adopt Chinese customs and become sinicized to the point where the Manchu language is in danger of extinction. This will be the last imperial dynasty.
More pictures below the cut.
Hanfu groups seem to work together so I apologize ahead of time in case there are any repeats. Also, please understand that sorting Hanfu by era can be hard due to similar styles carrying over into different eras, lack of historical evidence or knowledge, and various other factors.
The following are some links that may help you get some background information. Please let us know in the comment section if there are any other sites you may be able to recommend for more pictures.