Solway Spaceman - debunked

For years this photo has had Ufologists excited and mystery hunters looking for the answer on this photo. Because to some this is a photo of a young girl with what some claim to be a spaceman who is wearing a helmet. 

Spaceman? Really? 

Look again and I personally think it’s just someone stood in the background with their back facing the camera. 

The arm on the right that is at an angle is slightly bent towards the camera which fits with how a person would stand with their arm at that angle. 

But what about the spaceman’s helmet I hear you say. Well it’s definitely not an helmet, an is nothing more that the back of someone’s head.

I really don’t understand what took so long to debunk it?