Make a right mouse’s click on the word Effects on the layers’ palette on the layer we work with:



Select out of the coming up menu the Create Layers option. Apply the here presented option, Filter>Pixelate>Color Halftone, on the layer marked with the yellow color.



Next we have to press on the Ctrl+Shift+U (Desaturate), and Ctrl+M (Curves Dialog Box) and set the same parameters shown next table:



Make a right mouse’s button click on the canvas and choose the Color Range option.



Present it the same way indicated below:



Press on the Delete button and set Fill 75% on this layer on the layers’ palette.



The last step includes choosing the girl’s layer and selecting the Blending Options>Stroke

 



The final result!

View full size here.