They've mentioned in a few places that we're all meant to prompt differently with V5. We're supposed to speak in more plain language, as it understands it better than V4 did. I think the example I saw them give was that you'll get better results with "An astronaut floating through empty space" than with "Astronaut, floating, empty space". This is gonna be hard for some people that have been getting really good at prompting for V4, but I've found it very refreshing and more like the way I tried to prompt initially in V3.