Just cloned the image that I have provided to you to my sdcard. But I am not able to recreate the shutdown problem you are facing.
I have written the disk image to the sdcard without any partitions on it. But it doesn't matter even there were partitions on it, this disk image will replace entire partition table. Can you try with other locale settings on your first boot (btw I am using en_IN). May be something is wrong with xfce. Chroot to your sdcard and try installing other DE like openbox or lxde and also try reinstalling lightdm.