I figured out why the pictures were bad quality. The pictures that had a lot of texture were poorer quality. For example, if a lot of our carpet was shown, or someone's hair, or if they had a textured shirt on, it was worse quality. If there were smoother textures, it was fine.
And yes, today was our last day. Students left at noon, and we could leave right after them if all of our jobs were done. I left around 12:30, and a bunch of us went for lunch and drinks. I just got home a little bit ago. No more additional days.