Based on these pictures, which ones look like a receding hairline?

[AlexBr2012]

these are the hairlines of four DIFFERENT people.

based just on the picture, which ones look like a receding hairline to you? and which ones look normal?

hairline 1 http://i.imgur.com/6HoObtC.png

hairline 2 http://i.imgur.com/oLURuOo.png

hairline 3 http://i.imgur.com/RA9wSbK.png

hairline 4 http://i.imgur.com/Kn3OoFn.png


thank you so much.