Hi alice,
I think you need to give a bit more info, or rather screenshots (wireframe and much bigger).
What are you showing us in the (thumbnail sized) screenshot? A Rendering, the textured mesh? Did you simplify the mesh?
Generally speaking if everything is all right, then RC should model it properly. Is the nose tip maybe especially smooth or slightly shiny?
Have you tried placing 1 or 2 CPs there?