i was talking about her not receiving any mental backlash from the painting. the teachers see it it and they can barely even walk out of the tent with their lives but she sees it and she's damn near climaxing with joy. someone younger would generally speaking be much weaker to mental attacks than someone who's lived through more hardships. this arc has just been a very poorly written one and it should not be defended.
I dunno, I'm not sure things happened as you're describing them. all we saw of the teachers' reaction was that kalego looked startled and brought out cerberus, which implies that he felt substantially intimidated/threatened, and that murmur hurriedly intervened. after the fact, murmur exited the tent leaning on kalego, and he then straightened up and both teachers explained their judgment on the painting while looking normal and well. what we were shown of silvia's reaction is that she shrieked loudly, bolted out of the tent, and collapsed to the floor gasping for breath, drooling, and speaking in short, somewhat broken sentences in a near frenzy. I'm not sure it's fair to say the teachers barely survived and silvia just had a good time
and I think all three characters' past involvements with beem's art, or lack thereof, also contributes to their tolerance. kalego and murmur are teachers and beem is a student so I'm sure they know at least the basics of beem's art and background, but I think if either of them were especially interested or knowledgeable, we probably would have been given that information. meanwhile silvia's loved beem's art since she was a little girl and has always dreamed of seeing more of it, she spent a huge amount of the painting process sitting right next to beem and watching, she's been obsessed with wanting to see the finished piece since nearly the beginning of the arc, and she decided she was willing to risk anything and everything to let others see that piece
I think the implication is less that silvia is mentally stronger than the teachers and more that silvia's
ambition is so strong with regard to this one specific situation that the negative effects have instead become something enjoyable - kind of like how people generally don't like feeling afraid or threatened, but if they want to go to a haunted house then they expect and enjoy those feelings
sorry for rambling on. I'm real bad at being succinct