Hey Domo - overall some very nice work.
Here are some comments:
Page 1: rows of seats are inconsistent. Panel 2 looks like Quentin is in the last row; Panel 3 looks like there are 2 rows behind them; Panel 4 shows 1 row behind them. This needs to be consistent.
Page 1: Panel 3 - blockheads arm looks really short; also either the perspective is off on their desks or the desks are different sizes
Page 2: Panel 1 - Quentin looks like he has a double chin here which is very different from page 1; also, his jacket was closed on page 1 but he buttoned it somewhere?
Page 3: Thanos is very stiff looking. His hips and torso are completely square to each other and to the viewer (and floor!). He needs some twist to look alive, especially since his leg is back implying movement. This is the biggest issue I see with these pages. His fist also looks like it is resting on the body on the left.
Page3: Jubilee's position does not look natural. Her torso is too vertical for her to be leaning on her left arm. If she's not leaning on her left arm she must be doing a serious ab crunch to stay upright. I would redraw her as well.
I hope these crits are useful!