Hi Koi, for the flow part you wrote:

> Picture 1: twist with flow: the frame in the middle for the nose is very wide.

It looks like it's happening because your base shape has the middle nose area some distance away from the base plane. It's just a general property of offset distance that the amount of stretching is magnified the larger the offset distance.

Here's what you are flowing, notice the middle area where you don't like the deformation result is some distance away from the base plane:





The effect goes like this - the further away a point is from the base, the greater amount of distance it will get applied to it:





So to get better control you want the shape to be closer to the base plane and you probably want to apply it to the totally flat version instead of one where the middle/nose area has already been deformed some distance away from the base. And have the base plane going halfway through it. You want to minimize the amount of distance any part of your shape has away from the base plane to reduce expansion or collapsing effects.

Hope that makes sense!

- Michael