Ektar100 isn't great with skin tones and does give a very distinct look, the following are basically all the same setting but with the movement of the models I thought you would like to see some of the shadow areas. I see a slight blue but nothing that for me personally was too much, perhaps you've slightly under exposed them? I know Ektar100 is also more specific when it comes to exposure, it acts more like slide film in that regard, you have to get the exposure spot on-ish.

Warning, there is implied nudity in the following images and if you don't want to see that don't look, also, it's for subscribers only, sorry.

http://www.apug.org/gallery1/showima...mageuser=59230
http://www.apug.org/gallery1/showima...mageuser=59230
http://www.apug.org/gallery1/showima...mageuser=59230
http://www.apug.org/gallery1/showima...mageuser=59230