Didn't Bennet say at the last meeting with Sophia that he is not in school for 14 days but is working somewhere outside? Correct me if I'm wrong but in my opinion Bennet is not on site at all.
He gave her 2 weeks to decide but he didn't mention being away. Maybe you are confusing with Alyssa who went away for work and she is coming back on next Tuesday?
I see all these posts of sex in the hallway etc... Seriously, this is L&P! There is no sex scheduled yet!!! Now, just a thought, would this be her visage if she was looking down the hallway at the paintings from task 3? She could hear the discussions. She could see the reactions. She is pissed and proud at the same time. Is it pre or post task 4? Is it at the end of classes that day (most teachers gone) or during? Did Aiden tell some students to hang around for something 'Special'? Is this her task then to walk past the art?
What was the purpose of task 3 to create those products? Just a thought.
It can make sense. Not necessarily Aiden hanging the paintings himself in the hall but it could be, e.g. that the school has some connection/program with the youth detection facility and they hang the paintings on a bulletin board in the hall where all kinds of info are displayed. Something like that. In any case I don't think that the more daring paintings are shown (even because they depend on Sophia's choices).
It could be that Aiden told her to go check the main board for a little surprise and Sophia's heart skipped a beat when she saw it from the corner, with maybe already some students looking at them and commenting.
Using
nexer image for what Sophia is looking at (her POV)
L&P could have replaced the Maverics banner with some boards like e.g.
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where the paintings (or photos of them) are hung.