first, look at how homogeneous it is. all the costumes consist of a mask and a shirt. every desk has an empty paper on it. everyone is looking at the camera. almost every costume appears twice. this is an all-black classroom in the early-to-mid-80's, where someone is standing at the front of the classroom with their back to the windows (no light from any wall), taking a photo with flash of kids just sitting at their (all left-handed) desks in full costume.

second, think of the context. bluntly, this photograph should not exist in a world of film cameras, because even without all the visual oddities this is the sort of thing you'd do a photoshoot for. you'd ask all the kids to line up against a wall so you could get all their wonderful costumes. this is a spur-of-the-moment shot, like you'd do with a phone today, and unless you're the teacher you wouldn't be in the spot the photo is taken from.

Edit: more interesting details:

• count the table legs. they're all different.
• also the tables are completely misaligned. like they've been placed for the photo.
• why would a smurf costume include a picture of a smurf?
• one of the evil knievel costumes has "dukes of hazzard" sewn on.
• that one kid without a mask looks like he's melting.
• back to the smurf costume, what are those pants?
• why is there a piece of cheese on one of the tables?
• the darth vader costume includes a shirt with orange fur and a picture of darth vader on it? and the kid who has presumably left for the bathroom behind the front clown left their shirt?
• *points to darth vader mask* "what's wrong with your faAaAaAace?!"