doll features in photoshop

I have been looking at tutorials and practicing creating seams, joins and plastic doll like skin in photoshop.

 I have used various techniques.
I wanted to visually explore what the jar would look like as i think it has connotations of science and experiments in labs. (test-tube babies, preserves ect)

I think the seams work best in the image on the left and the image where the subject has her back to the camera.

I the image on the left above this text i tried to create ball joints as to make the subject look like a mannequin/ jointed puppet/doll. This is a technique i need to further develop as to make the image more visually effective.

On the black and white photo i used the pen too and the same technique used to create the seems on the other images but instead to create shapes. i then used layer masks to remove areas of the models body and adjust her shape.