Those concerned about the notorious practice of doctoring cosplay pictures into something which bears as much resemblance to reality as do the original 2D characters are perhaps right to be afraid, if the below images are any guide.
The images provided cover a wide variety of themes:
Only slightly less perniciously deceptive than the practice of makeup?
Those looking to refresh themselves after the ordeal above are recommended to check the work of the amateur photographers of 2ch, showing much in the way of quality cosplay, with a high degree of verisimilitude.
Alternatively, the dark side of cosplay can be embraced in the form of the lovely Akasan.