the 2 things to remember when modeling clothing in wings

 

Poser has an automatic smooth on all polys.  This will smooth things, so its okay if things look a little chunky in wings.  Check the Virtual smooth fairly often to see how clean your curves are

Poser models need to be grouped - make sure to have clear edge lops where there are bodypart cuts on the underlying figure.  This will make your life much easier later

 

You might want to consider looking for a 'quicksuit' or 'starter' suit for your fiugures. this is copyright free mesh you can chop up and turn into your own stuff.  I have several on ShareCg, and there are loads more all over the place.  This is a good way to get the hang of things, and you can look at the mesh to get an idea for how to make your own starter suits to use later

Lyrra