These photos are of one of the actual Queen Alien miniatures used in filming. It is a 1/4 scale "floppy" puppet that was used for the scene where the Queen falls from the airlock into space. Although it's in poor condition here, it serves as a useful painting guide because of the neutral lighting.
Thanks to Anthony Mestas for these colour pictures of the Gillman.
I snapped these pictures of a Mondoshawan's head at a film & collectible fair. The Mondoshawans were the armadillo-like big creatures at the start of the film.
The following set of pictures are all frame-grabs from the Fifth Element DVD.
These close-ups of the alien creature come from the behind the scenes disc that comes with the DVD special edition.