I’d normally jump right in on this, but after checking the photo, it does seem to me like he is looking at his shoes. Or something under his shoes.
Look at the position of his feet. Toes up, slanted...
Anyhow, in the interests of honesty, I have to say that does not qualify as a “bow” to me.
There's no inscription.
No, that’s not toe up, that’s toes slightly apart on a shiny, light-reflecting marble (or whatever) ground.
Much more telling is the position of his hands. Along with his head it sure looks like a bow to me.