Some handy links:
Melanie Graham at Mind Melt has done some Lauscha colour tests. Includes latte macchiato and orchid if you want a head start on how they react, as well as cocoa, dark teal and olive.
Dwyn Tomlinson of DragonJools also has some colour testing and reviews (link is to a site-specific google search as that's the eaiest way to find them all).
Kandice Seeber at Coloraddiction has reviewed Lauscha cocoa.