[dila813]

The only weird thing I see on this photo is, that the background has been changed but the sun position appears to be correct.

Notice that there is a stone wall behind them. You have to look close, but between the two kids there is a stone wall with cracks in it.

This doesn't match the background. The sign looks real to me, but I can't detect where they changed the background except where they messed it up.

It is probably a very good fake.

[arasina]

I think you're right. I see the stone wall between the two boys. Looks like that perhaps was the original background...or at least it was put there using Photoshop. The photo was altered.

[FourPeas]

The wall is also behind the Lcpl's legs. I agree th background definitely looks altered, it wouldn't be surprising, then, that something else had been also.