Focus at different apertures (2)

Second attempt at this exercise, this time using the railings in front of the Keswick crazy golf course, taken at the following apertures at 55mm focal length; all centre focussed:

DSC2550: f4 - centre in focus, rest of image out of blurred
DSC2551: f13 - as above, but rest of image less blurred
DSC2552: f22 - as above, but rest of image clearer still

DSC2550

DSC2551

DSC2552

 So basically, which aperture setting you choose will depend on how blurred you want the background to be.  I like the effect of the f4 setting, but appreciate this may not be appropriate for every situation!