I recreated an I SPY scene with Lego

I previously made my own I SPY inspired picture riddles but decided to actually recreate one. This one is called "Blocks" and is the first picture riddle from the first I SPY book. It took me a few months to design and source all the parts. Photographing it was also tricky because I tried to mimic the original lighting as much as possible, including the shadow direction. See if you can spot everything! Edit: someone pointed our there's actually 12 helmets, not 11 submitted by ...