Is this a boy?

Virginia

I had my anatomy scan a couple of days ago at 20 weeks. I'm pregnant with twins so it was tricky getting all of the necessary pictures. I was told boy for one of my babies but didn't realize how hard the picture was to make out. His foot kept getting in the way. What do you think? I see something poking down but can't tell if it's his genitals or part of the foot. It almost seems too square to be genitalia.