I like the emotion. The way he's running his finger around the rim of her halo reminds me of how a man does to his woman's hair. He seems sweet on her at a glance, but looking at his eyes and his sagged face muscles, it's almost like something else is on his mind. Maybe guilt or regret, maybe he's keeping a secret from her... not sure! I just get this 'cold stare'/'1000 yard stare' feeling from it, some sort of worrisome something-a-nother he's keeping from her. I could be reading too much into it, but if it was a happy moment I feel like his eyes would be dilated by the light and 'focusing' on that light.
Would love to hear some backstory from the artist if there is one Great piece <3