When I look at the picture, I don't see the gun being too close to his face or that his stance is wrong. What immediately came to mind was the he was pieing the corner to the left. The gun would be angled to the left such that if he fires, the slide will travel back and to his right, passing by his right cheek, maybe closely, but not directly into his face.
As for the folks who note that he should not be clearing the house alone, he is the only one in the picture, but that doesn't mean he is alone.