American covers 1 + 2, and the first French cover (weird, isn´t it?)
Three Danish covers - conspiracy & playing hide-and-seek, perhaps.
Three Swedish covers. Focus on Lisbeth Salander, rather sinister colours.
And finally, the British ones which imitate the Swedish style to some extent.
For the very interesting Spanish covers, visit Jose´s blog - thank you, Jose, for taking part in the fun!